BMW Transmission Parts for BMW 5 Series E39 (1996-2003)

The ZF S5D 320Z 5-speed transmission is known for its robust design, exceptional durability, and impressive power-handling capability. Unfortunately, as these transmissions age, shifter-related issues have become increasingly common. Problems such as difficulty selecting gears, a sticky shifter, or a decline in shift quality are often the result of worn detent springs, pins, and bushings. These components are essential for precise gear engagement and proper shifter centering, making their replacement a critical step in maintaining optimal performance.

Replacing detents requires specialized tools known as "drifts," which are notoriously hard to find. Fortunately, we've developed a complete Detent Tool Kit, featuring five precision-engineered drifts designed for exact fitment in the ZF transmission's detent bores. This toolset makes detent replacement straightforward and minimizes the risk of damage to internal transmission components.

Features

Complete Tool Kit: Includes five precision-machined drifts specifically designed for the ZF 5-speed transmission’s detent bores and caps. Hassle-Free Detent Replacement: Simplifies the process of removing and installing detents with professional-grade precision. Protects Your Investment: Reduces the risk of damaging internal transmission components during service. Durable Construction: Made from heavy-duty 1045 steel for exceptional strength and long-lasting reliability.

If allowed in the rules these solid aluminum transmission mounts offer many advantages over a urethane or Delrin mounts. It's no wonder that these mounts have found their way into the top BMW racers in the country. These are machined from solid aluminum and have zero deflection, engine torque will cause a rubber or urethane mount to flex or deflect allowing more torque to passed through the drive line (instead of being wasted winding up the mount). This puts the shift linkages in better consistent alignment. And unlike rubber or urethane the aluminum has zero wear and is not affected by leaking oil or other fluids so this is likely the last set of transmission mounts you will ever need. We very strongly recommend using the solid transmission and engine mounts together as a complete kit, mixing a rubber mount with a metal mount will cause undue stress on the mounting points and will lead to a failure. We never advise using a solid mount unless a corresponding solid mount is also used.

These are a no-compromise design for all-out racing use, full solid aluminum mounts should not be used on street-driven cars since there is no material to absorb vibration making these quite harsh for regular street use (track cars don't care about noise).

Product features and benefits:

• Crisper throttle response, positive shifter location, direct power transfer
• Precision machined billet 6061-T6 aluminum housing
• Grade 10.9 stud - fear not, big turbo owners
• Engineered in-house and made in America

This item fits the following BMWs: 
1989-1995  E34 BMW  525i 530i 535i 540i M5 
1992-1998  E36 BMW  318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 
1997-2003  E39 BMW  525i 528i 530i 540i M5 
1999-2005  E46 BMW  323i 323ci 325i 325ci 328i 328ci 330i 330ci M3 
2008-2012  E82 BMW  128i 135i 1M Coupe 
2006-2011  E90 BMW  325i 328i 330i 335d 335i - Sedan 
2006-2012  E91 BMW  328i - Wagon 
2007-2013  E92 BMW  328i 335i 335is - Coupe 
2007-2013  E93 BMW  328i 335i - Convertible 
1997-2002  Z3 BMW  Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe ​

Maintain the longevity of your BMW's manual transmission and differential by incorporating this fully synthetic 75w90 weight gear oil into your maintenance routine. Flushing and replacing fluids at specified intervals, as per your owner's manual, is crucial to prevent costly issues in the future. Explore the benefits of this gear oil:

• Specifically designed for BMW manual transmissions.
• Fully synthetic hypoid gear oil for high performance.
• Excellent protection in diverse weather conditions.
• Maximum wear protection and precise functionality.
• Enables longer oil change intervals.

Meets Specifications:

• API GL4, GL5, MT-1
• MIL-PRF 2105 E

All sets of 12 now 10% off regular price!

Red Line 75W140 is a full synthetic high-performance gear oil that is an excellent substitute for expensive factory fluid and an upgrade over off-the-shelf economy fluid. Red Line thoroughly evaluates the manufacturer's recommendations and only makes a fluid recommendation if their own product meets or exceeds the original specification. In many cases the Red Line synthetic will outperform the factory supplied fluids. We've been using Red Line Oil in our BMWs since we opened in 1994 and it remains our best selling BMW differential fluid. 75/140 is a specialized weight used for BMW M3, M5, and M6 models with the M Variable limited slip diff (all M models since 2001). Red Line fluid is used in nearly all E46 M3, E92 M3, E60 M5 we service as well as the custom differentials that we sell. It's great for the street where the polyol-ester base has natural lubricity and friction modifiers lead to smoother and quieter operation with lower operating temps than the factory fluid. We also use it in the track cars we build and prep. It may also be used in other specialized situations where a regular 75/90 will be too thin at elevated temperatures and your diff builder has approved a heavier weight oil.

Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, and SAE J2360. An alternative to the very expensive factory BMW SAF-XJ+FM diff fluid (#83222282583).

Upgrade Your BMW's Performance and Comfort with 034Motorsport's Density Line Mounts

Experience enhanced performance and comfort with 034Motorsport's Density Line Mounts, exclusively available at ECS Tuning for purchase and shipment within the United States. Crafted from high-durometer rubber, these mounts offer increased durability and performance without compromising on comfort. Engineered as an optimal solution compared to harsh polyurethane mounts, they provide improved drivetrain responsiveness and crisper shifting without significant noise or vibration in the cabin.

Key Benefits:

• Manufactured from high-durometer 60 Durometer Rubber
• Reduces drivetrain slop for enhanced performance
• Provides crisper shifting and more direct power transfer
• Minimal increase in noise, vibration, or harshness (NVH)
• Complete drop-in replacement for factory transmission mounts
• Ideal for use alongside upgraded engine mounts

The ZF 320z S5D is a common swap choice among BMW enthusiasts due to its reliable and robust nature. Unfortunately, it does have a weakness. The detent pins and springs that live inside of the transmission are known to wear down over time, often causing the shift lever to lean towards the 5th gear position when in neutral.

This full-service kit consists of everything you need to replace the failing detents in your ZF transmission. The kit contains only Genuine ZF components, all of which are sure to provide you with smooth shifting and operation for years to come.

This kit includes the following items:

3 Shift Pin Kits - 23117525048
2 Slide Bushings - 23117533395
2 Gearbox sealing lids - 23311224825
1 Shifter detent pin - 23311224849
1 Shifter detent pin - 23317502165
2 Lock Rings - 23317531374
3 Spring Retention Plates - 23317637524
5 Detent Drift/Punch Tools - 054834LA01AKT
Remedying the ZF's detent issue is a must for any enthusiast planning to get the most out of their transmission. Proper centering is essential for quick and smooth shifting, both being desirable features in any application. This kit is easy to install with several DIY guides existing online. A set of "drift" tools are included for proper installation.