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SKU: KIT-23117527440KT1
Made in: N/A
Quality: Performance
30504, 83220403248, 1161621, 23117527440, 23117510100
30504
| Qty | Part | SKU | Brand |
|---|---|---|---|
| 2 | Automatic Transmission Fluid | RED-30504 | Red Line |
| 2 | Transmission Drain Plug | BMW-23117527440 | Genuine BMW |
Basic service kit for performing a drain and fill on 5-speed and 6-speed manual transmissions
This kit is designed for BMW manual transmissions including the S5D250G, GS6S37BZ, S6S420G, and S5D320Z. It includes two quarts of Red Line D4 transmission fluid and two Genuine BMW drain/fill plugs, which must be replaced with every service.
A drain and fill service is one of the easiest forms of preventative maintenance you can perform. Over time, transmission fluid breaks down, leading to excessive notchiness and poor shift feel—especially in colder climates. Performing regular fluid changes improves gear engagement and protects internal components.
Recommended interval: every 48,000 km (30,000 miles) for optimal lubrication and performance.
Manual Transmission Fluid
Manual transmission fluid is a specialized lubricant that reduces friction between internal gearbox components, enabling smooth gear changes. Failure to replace it regularly can lead to serious drivability issues.
Failure Symptoms:
Difficult shifting (hard or notchy gear changes)
Gear slipping (engine revs without proper acceleration)
Grinding noises (especially during shifts, indicating gear wear)
GEMS autocraft offers quality auto parts, performance upgrades, accessories, maintenance services, retrofit solutions, and advanced coding support for a wide range of vehicles.
Returns are accepted within 30 days of delivery, provided the item is unused, in its original packaging, and in resellable condition. For complete details, please see our Return Policy.
Yes, we ship worldwide. Orders are packed carefully and overboxed when needed to help ensure they arrive safely.
Yes. Once your order has shipped, you will receive a tracking number by email. You can also check your order status anytime through your customer account under the Orders section.
We accept major credit cards, PayPal, Apple Pay, Google Pay, Shop Pay, e-Transfer, and Wise to offer a secure checkout experience.
We stand behind the products and services we offer. Our return and warranty process is designed to be clear, fair, and efficient, so every request can be reviewed properly and handled with care.
GEMS Guard™ is our commitment to long term confidence across the products and services we support. It brings together lifetime protection on GEMS autocraft branded parts, honored manufacturer warranties on eligible products, and a 1 year workmanship warranty on services performed by GEMS autocraft.
