Mercedes Sprinter Level 1 Transmission Service Kit – T1N & NCV3 | 5-Speed Automatic

Automatic transmission service on a T1N or early NCV3 Sprinter is one of the most skipped maintenance items on high-mileage vans — and on a 5-speed automatic that may have accumulated 150,000+ miles with no fluid change, a proper Level 1 service with fresh fluid, a new filter, and a new drain plug seal is one of the highest-value preventive maintenance services available. This is the Level 1 basic automatic transmission service kit for T1N and NCV3 Sprinter vans equipped with the 5-speed automatic transmission, containing everything needed for a complete pan-drop service.

What's Included

The Fuchs ATF4134 transmission fluid (9 liters / 001989680310F) is the OEM-approved fluid specification for the T1N/NCV3 5-speed automatic. Using an incorrect ATF causes valve body wear, clutch pack slip, and shift quality degradation — always use the correct specification. The transmission filter kit (1402700098H / FK140) includes the internal filter screen that removes metal particles and debris from the fluid before it reaches the valve body and clutch packs. The filter should be replaced at every fluid change to prevent contamination from migrating into the valve body. The drain plug connector/seal (2035400253OE) seals the transmission pan drain point and should be replaced every service to prevent leakage from a compressed or damaged seal.

Why Level 1 Service

A Level 1 basic transmission service covers the pan-drop fundamentals: drain the old fluid, drop the pan, replace the filter, clean the pan, install the new drain plug seal, and refill with fresh fluid to specification. It is the baseline service for any automatic transmission — addressing worn fluid, contaminated filter media, and a degraded drain seal — and is the correct starting point before evaluating transmission performance or considering further service.

T1N & NCV3 5-Speed Automatic Specific

This kit is for T1N (2001–2006) and NCV3 (2007–2018) Sprinter vans equipped with the 5-speed automatic transmission. Always verify your transmission type before ordering.

Fitment

• 2001–2006 Mercedes-Benz / Dodge Sprinter 2500 / 3500 – 5-speed automatic (T1N)
• 2007–2018 Mercedes-Benz / Dodge / Freightliner Sprinter 2500 / 3500 – 5-speed automatic (NCV3)

✔ 5-speed automatic only — 7G-Tronic (722.9) uses different service components
✔ Always verify transmission type before ordering

Kit Contents

• 1402700098H — Transmission Filter Kit: FK140 (qty 1)
• 001989680310F — Transmission Fluid: Fuchs ATF4134, 1 liter (qty 1)
• 2035400253OE — Drain Plug Connector / Seal: 09.4313.40 / 10.3384.17 (qty 1)