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BMW Internal Engine Parts

Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

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Performance Cam Follower/Rocker Arm - Set of 24 - E46 M3, Z3M/Z4M S54...
Earn 5% back in Turner Rewards on orders placed 10/28-10/31. Redeem 11/27-12/1. Terms & conditions apply
Turner Motorsport - Corporate Logo
T#:46650429
Part#: 054995LA01KT
In Stock
Sale - Save 25% $ 1,733.99

This product was last offered at the strikethrough price on
06-14-2026

$ 1,300.49 USD
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Sale - Save 25%
$ 1,733.99

This product was last offered at the strikethrough price on
06-14-2026

$ 1,300.49 USD
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Unlock the full potential of your S54’s valvetrain with our High Performance Cam Followers/Rocker Arms, built for precision, durability, and reliability in high-revving performance engines.

Crafted from forged chromoly steel and finished with a diamond-like carbon coating, these cam followers are engineered to deliver exceptional strength, reduced friction, and outstanding wear resistance, ideal for demanding street or track use. Each unit is precision-ground for consistent clearances and smooth, stable valvetrain motion at all RPMs. Despite heavy-duty construction, our design retains the same weight as the factory rocker arm, preserving OE valvetrain geometry and balance while offering superior longevity and performance.

Rocker arms wear in conjunction with the camshafts, meaning the two must be replaced simultaneously. Aftermarket and performance camshaft options (Schrick, CAT-Cams, etc.) are typically ground from softer blanks and, as a result, cannot be used with factory rocker arms. We tested our performance cam followers with aftermarket camshafts to validate compatibility, ensuring smooth, reliable, and safe operation under demanding conditions.

Features:

Forged chromoly construction for maximum strength and durability Diamond-like carbon-coated surface reduces friction, extends service life, and permits compatibility with aftermarket and performance camshaft options Precision-ground tolerances ensure consistent and quiet operation OEM weight match maintains valvetrain balance and reliability Superior wear resistance for performance and endurance applications NOTE: Rocker arms are wear items and must be replaced alongside a new set of camshafts, regardless of profile or manufacturer. Installing a new set of rocker arms onto a used set of camshafts is NOT recommended.

Kit Contents:

24 DLC-Coated Rocker Arms (required to complete both camshafts) Product Development: Our Turner Performance Rocker Arms are the result of advanced engineering, testing, and quality assurance by Turner’s Research & Development team. Every stage of development employs FARO laser scanning, SolidWorks 3D CAD modeling, and in-house rapid prototyping for precise fitment and design validation. Performance and durability are proven through Mustang AWD 500 SE dyno testing and Superflow SF-750 Flowbench analysis, ensuring each component meets Turner’s uncompromising standards for performance and quality.

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Turner Motorsport - Corporate Logo
T#:46616031
Part#: 054995LA01
In Stock
Sale - Save 25% $ 917.99

This product was last offered at the strikethrough price on
06-14-2026

$ 688.49 USD
Free Shipping
Sale - Save 25%
$ 917.99

This product was last offered at the strikethrough price on
06-14-2026

$ 688.49 USD
Free Shipping

Unlock the full potential of your S54’s valvetrain with our High Performance Cam Followers/Rocker Arms, built for precision, durability, and reliability in high-revving performance engines.

Crafted from forged chromoly steel and finished with a diamond-like carbon coating, these cam followers are engineered to deliver exceptional strength, reduced friction, and outstanding wear resistance, ideal for demanding street or track use. Each unit is precision-ground for consistent clearances and smooth, stable valvetrain motion at all RPMs. Despite heavy-duty construction, our design retains the same weight as the factory rocker arm, preserving OE valvetrain geometry and balance while offering superior longevity and performance.

Rocker arms wear in conjunction with the camshafts, meaning the two must be replaced simultaneously. Aftermarket and performance camshaft options (Schrick, CAT-Cams, etc.) are typically ground from softer blanks and, as a result, cannot be used with factory rocker arms. We tested our performance cam followers with aftermarket camshafts to validate compatibility, ensuring smooth, reliable, and safe operation under demanding conditions.

Features:

Forged chromoly construction for maximum strength and durability Diamond-like carbon-coated surface reduces friction, extends service life, and permits compatibility with aftermarket and performance camshaft options Precision-ground tolerances ensure consistent and quiet operation OEM weight match maintains valvetrain balance and reliability Superior wear resistance for performance and endurance applications NOTE: Rocker arms are wear items and must be replaced alongside a new set of camshafts, regardless of profile or manufacturer. Installing a new set of rocker arms onto a used set of camshafts is NOT recommended.

Kit Contents:

One set of 12 DLC-Coated Rocker Arms (services intake OR exhaust camshaft) 24 Rocker Arms / 2 Sets of 12 Rocker Arms required to complete both intake and exhaust camshafts. Product Development: Our Turner Performance Rocker Arms are the result of advanced engineering, testing, and quality assurance by Turner’s Research & Development team. Every stage of development employs FARO laser scanning, SolidWorks 3D CAD modeling, and in-house rapid prototyping for precise fitment and design validation. Performance and durability are proven through Mustang AWD 500 SE dyno testing and Superflow SF-750 Flowbench analysis, ensuring each component meets Turner’s uncompromising standards for performance and quality.

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ECS - Corporate Logo
T#:395066
Part#: 11241284849WPC
In Stock
Sale - Save 25% $ 188.99

This product was last offered at the strikethrough price on
06-13-2026

$ 141.74 USD
Free Shipping
Sale - Save 25%
$ 188.99

This product was last offered at the strikethrough price on
06-13-2026

$ 141.74 USD
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These WPC-treated bearings are the best we have seen! WPC is a shot-peening treatment at a microscopic level. It's perfect for sensitive surfaces like bearings. The WPC treatment removes imperfections and high spots, while creating a surface that retains oil better than the original surface. This greatly reduces friction. The bearings in this kit are original equipment KS bearings that are sent to WPC for treatment. The treated bearings are stronger with less metal fatigue and less friction than buying off-the-shelf bearings from the dealer.

This item fits the following BMWs: 
1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix 
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1982-1988 E28 BMW 528e
1989-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i 
2004-2006 E83 BMW X3 2.5i X3 3.0i 
2000-2006 E53 BMW X5 3.0i 
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe 
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i 

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ECS - Corporate Logo
T#:585720
Part#: 11211706847WPCKT
In Stock
Sale - Save 3% $ 250.99

This product was last offered at the strikethrough price on
06-14-2026

$ 243.46 USD
Free Shipping
Sale - Save 3%
$ 250.99

This product was last offered at the strikethrough price on
06-14-2026

$ 243.46 USD
Free Shipping
What's better than using new crank bearings in your next engine build? WPC-treated bearings! What is WPC, you ask? WPC is a surface treatment that reduces friction and adds strength - two improvements that benefit internal engine components. Ultra-fine particles are fired at the surface at very high speeds, like shot-peening - but much, much smaller. The parts come out smoother and stronger due to thermal discharge. The two largest enemies of any high-performance engine are heat and friction - and WPC has found a way to reduce both. What are you waiting for? Use WPC-treated bearings on your next engine build or crank service!
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Genuine MINI - Corporate Logo
T#:406420
Part#: 11237537697
In Stock
$ 73.99 USD
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$ 73.99 USD
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ECS - Corporate Logo
T#:388759
Part#: 11247841702WPCKT
In Stock
$ 1,086.99 USD
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$ 1,086.99 USD
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These WPC-treated bearings are the best we have seen for the S85. WPC is a shot-peening treatment at a microscopic level. It's perfect for sensitive surfaces like bearings. The WPC treatment removes imperfections and high spots, while creating a surface that retains oil better than the original surface. This greatly reduces friction. The bearings in this kit are factory BMW bearings that are sent to WPC for treatment. The treated bearings are stronger with less metal fatigue and less friction than buying off-the-shelf bearings from the dealer.

Price is for a complete set of S85 upgraded rod bearings.

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Genuine MINI - Corporate Logo
T#:407264
Part#: 11347547187
Ships in 2 Business Days
8% off MSRP $ 65.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 60.99 USD
Free Shipping
8% off MSRP
$ 65.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 60.99 USD
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Genuine MINI - Corporate Logo
T#:33887
Part#: 11311485403
Ships in 2 Business Days
$ 128.99 USD
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$ 128.99 USD
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Genuine MINI SPROCKET
Fits BMW Engines including:
W10,W11


Genuine MINI - Corporate Logo
T#:405907
Part#: 11127560274
Ships in 2 Business Days
19% off MSRP $ 89.76

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 72.75 USD
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19% off MSRP
$ 89.76

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 72.75 USD
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ECS - Corporate Logo
T#:389729
Part#: 11241407493WPCKT
Ships on Sep 10, 2026
$ 1,231.84 USD
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$ 1,231.84 USD
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These WPC-treated bearings are the best we have seen for the S62. WPC is a shot-peening treatment at a microscopic level. It's perfect for sensitive surfaces like bearings. The WPC treatment removes imperfections and high spots, while creating a surface that retains oil better than the original surface. This greatly reduces friction. The bearings in this kit are factory BMW bearings that are sent to WPC for treatment. The treated bearings are stronger with less metal fatigue and less friction than buying off-the-shelf bearings from the dealer.

Price is for a complete set of S62 upgraded rod bearings.

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Genuine MINI - Corporate Logo
T#:15777325
Part#: 11122470427
Ships in 4 Business Days
6% off MSRP $ 4,526.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 4,234.99 USD
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6% off MSRP
$ 4,526.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 4,234.99 USD
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Introducing the Genuine Mini Cylinder Head (Part Number: 11122470427) for your Mini Cooper – the ultimate solution to enhance your engine's performance and reliability.

Precision-engineered to exacting standards, this cylinder head is an authentic replacement part from Genuine Mini, ensuring seamless compatibility and a perfect fit for your Mini Cooper. Crafted with the utmost attention to detail, it's designed to deliver exceptional combustion efficiency, improving power output and fuel economy.

Whether you're looking to replace a worn-out cylinder head or boost your Mini Cooper's performance, this Genuine Mini Cylinder Head is the ideal choice. Rest assured that you're investing in a top-quality component that meets the highest industry standards, backed by the reputation of Genuine Mini for excellence.

Upgrade your Mini Cooper's engine with the Genuine Mini Cylinder Head (Part Number: 11122470427) and experience the perfect balance of performance, durability, and reliability. It's time to unleash the full potential of your Mini Cooper with this authentic and high-quality component.

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Genuine MINI - Corporate Logo
T#:33527
Part#: 11257566019
Ships in 8 Business Days
10% off MSRP $ 414.20

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 370.99 USD
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10% off MSRP
$ 414.20

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 370.99 USD
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Genuine MINI MAHLE PISTON
Fits BMW Engines including:
N14



ECS - Corporate Logo
T#:585946
Part#: 11127531224WPC
In Stock
$ 916.99 USD
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$ 916.99 USD
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A common issue on N54 motors is cam bearing ledge scoring due to lack of lubrication, and if left unattended can cause damage to the camshaft and increase oil consumption. These WPC-treated cam bearing ledges help prevent lubrication issues to ensure no scoring occurs on the bearing ledge or camshaft. What is WPC, you ask? WPC is a surface treatment that reduces friction and adds strength - two improvements that benefit internal engine components. Ultra-fine particles are fired at the surface at very high speeds, like shot-peening - but much, much smaller. The parts come out smoother and stronger due to thermal discharge. The two largest enemies of any high-performance engine are heat and friction - and WPC has found a way to reduce both.
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ECS - Corporate Logo
T#:585945
Part#: 11127550913WPC
In Stock
$ 898.99 USD
Free Shipping
$ 898.99 USD
Free Shipping
A common issue on N54 motors is cam bearing ledge scoring due to lack of lubrication, and if left unattended can cause damage to the camshaft and increase oil consumption. These WPC-treated cam bearing ledges help prevent lubrication issues to ensure no scoring occurs on the bearing ledge or camshaft. What is WPC, you ask? WPC is a surface treatment that reduces friction and adds strength - two improvements that benefit internal engine components. Ultra-fine particles are fired at the surface at very high speeds, like shot-peening - but much, much smaller. The parts come out smoother and stronger due to thermal discharge. The two largest enemies of any high-performance engine are heat and friction - and WPC has found a way to reduce both.
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Genuine MINI - Corporate Logo
T#:407311
Part#: 11367536085
Ships in 2 Business Days
6% off MSRP $ 674.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 633.99 USD
Free Shipping
6% off MSRP
$ 674.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 633.99 USD
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Genuine MINI N18 1.6L Adjustment Sprocket Unit - Outlet Cam

Upgrade your Mini's performance with the Genuine MINI N18 1.6L Adjustment Sprocket Unit - Outlet Cam. Engineered with precision, this adjustment sprocket unit ensures precise timing for improved engine efficiency. Its durable construction and easy installation make it an ideal choice for Mini owners looking to enhance their driving experience.

  • Optimizes engine performance
  • Ensures precise timing
  • Durable construction
  • Easy installation
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Genuine MINI - Corporate Logo
T#:1996187
Part#: 11258693017
Ships in 2 Business Days
7% off MSRP $ 133.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 124.99 USD
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7% off MSRP
$ 133.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 124.99 USD
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Genuine MINI - Corporate Logo
T#:407348
Part#: 11377539969
Ships in 2 Business Days
7% off MSRP $ 58.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 54.99 USD
Free Shipping
7% off MSRP
$ 58.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 54.99 USD
Free Shipping
Genuine MINI - Corporate Logo
T#:521728
Part#: 11248623418
Ships in 2 Business Days
7% off MSRP $ 873.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 812.99 USD
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7% off MSRP
$ 873.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 812.99 USD
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Genuine MINI - Corporate Logo
T#:19173
Part#: 11237525135
Ships in 2 Business Days
5% off MSRP $ 575.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 544.99 USD
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5% off MSRP
$ 575.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 544.99 USD
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Genuine MINI ENGINE VIBRATION DAMPER
Fits BMW Engines including:
W11

Genuine MINI - Corporate Logo
T#:529650
Part#: 11238638614
Ships in 2 Business Days
9% off MSRP $ 631.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 577.99 USD
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9% off MSRP
$ 631.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 577.99 USD
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ECS - Corporate Logo
T#:17073561
Part#: 11247620969WP3KT
Ships on Sep 10, 2026
Sale - Save 10% $ 559.99

This product was last offered at the strikethrough price on
06-14-2026

$ 503.93 USD
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Sale - Save 10%
$ 559.99

This product was last offered at the strikethrough price on
06-14-2026

$ 503.93 USD
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ECS - Corporate Logo
T#:17073562
Part#: 11247620969WP4KT
Ships on Sep 10, 2026
Sale - Save 10% $ 419.99

This product was last offered at the strikethrough price on
06-14-2026

$ 377.95 USD
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Sale - Save 10%
$ 419.99

This product was last offered at the strikethrough price on
06-14-2026

$ 377.95 USD
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Genuine MINI - Corporate Logo
T#:407314
Part#: 11367545862
Ships in 2 Business Days
6% off MSRP $ 674.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 633.99 USD
Free Shipping
6% off MSRP
$ 674.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 633.99 USD
Free Shipping
Genuine MINI - Corporate Logo
T#:536308
Part#: 13528648731
Ships in 2 Business Days
10% off MSRP $ 104.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 94.99 USD
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10% off MSRP
$ 104.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 94.99 USD
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Genuine MINI - Corporate Logo
T#:512533
Part#: 11377539970
Ships in 4 Business Days
7% off MSRP $ 58.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 54.99 USD
Free Shipping
7% off MSRP
$ 58.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 54.99 USD
Free Shipping
Genuine MINI - Corporate Logo
T#:641056
Part#: 11258678931
Ships in 8 Business Days
7% off MSRP $ 403.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 375.99 USD
Free Shipping
7% off MSRP
$ 403.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 375.99 USD
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Genuine MINI - Corporate Logo
T#:406826
Part#: 11257566479
Ships in 5 Business Days
7% off MSRP $ 127.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 118.99 USD
Free Shipping
7% off MSRP
$ 127.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 118.99 USD
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Genuine MINI - Corporate Logo
T#:589809
Part#: 11259468869
Ships in 8 Business Days
7% off MSRP $ 1,857.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,729.99 USD
Free Shipping
7% off MSRP
$ 1,857.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,729.99 USD
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Genuine MINI - Corporate Logo
T#:33506
Part#: 11257520133
Ships in 8 Business Days
5% off MSRP $ 81.72

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 77.93 USD
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5% off MSRP
$ 81.72

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 77.93 USD
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This piston ring set is designed for repairing or rebuilding the engine head, featuring stock size rings. Each set is intended for one piston, and since there are four pistons in each head, you'll need four sets for a complete repair.
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Genuine MINI - Corporate Logo
T#:34077
Part#: 11317587756
Special Order: No Guaranteed ETA
6% off MSRP $ 930.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 874.99 USD
Free Shipping
6% off MSRP
$ 930.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 874.99 USD
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Genuine MINI INLET CAMSHAFT
Fits BMW Engines including:
N14,N51


Genuine MINI - Corporate Logo
T#:590873
Part#: 11259468870
Special Order: No Guaranteed ETA
7% off MSRP $ 1,857.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,729.99 USD
Free Shipping
7% off MSRP
$ 1,857.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,729.99 USD
Free Shipping