BMW Internal Engine Parts for BMW X5 M S63 4.4L

Clear BMW chassis

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.

Sub-Categories

Sort By:

AGA Tools N63 Updated Rear Engine Cover - BMW N63 (2008-2019) ...

T#:26404835

Part#: AGA-N63-6061-URC

Ships in 7 Business Days

$ 449.99 USD

Add to Wish List

Qty

$ 449.99 USD

Add to Wish List

The BMW N63 rear cover is a metal plate that covers the rear of the BMW N63 V8 engine. It helps to seal the engine and prevent oil leaks. Over time, the original sealing gasket becomes brittle and does not seal, causing leaks between the engine and transmission bell housing. This repair can be very expensive and is usually misdiagnosed for a rear main seal. The AGA Updated N63 Rear Cover is an inexpensive alternative, made of 6061 billet aluminum. This kit includes the rear cover, viton o-ring, alcohol wipe, scotch-brite pad and o-ring grease. BMW Part # 11142446298 & 11148483799 BMW Service Bulletin (SIB) 11 09 16

Show More Show Less

CP-Carrillo Forged Connecting Rod Set - H-Beam

T#:21933062

Part#: CAR-CRS-S63-WMC

Ships on Oct 6, 2026

$ 2,399.99 USD

Add to Wish List

Qty

$ 2,399.99 USD

Add to Wish List

Carrillo connecting rods are renowned in the world of professional racing and street performance for a reason – they consistently deliver a premium product that champions worldwide rely on. At Carrillo Industries, quality and pride are inseparable. Crafting a Carrillo rod goes beyond the standard processes of cutting, forging, and meeting production targets. It's about the unwavering commitment to victory. Carrillo rods have proven their mettle in both street and racing S63 engines, earning a place in the hearts of racers who demand the very best. Key Features: Special Chrome-Moly-based alloy Forged Rods Lightweight design for reduced mass compared to stock Proven strength in racing environments Rigorous quality control with tight tolerances and balancing Comes complete with high-quality, non-stretch WMC Rod Bolts When it's time to elevate your engine's performance, trust Carrillo connecting rods to deliver the ultimate combination of strength, precision, and reliability. Join the ranks of those who settle for nothing but the best in the pursuit of excellence.

Show More Show Less