RTC478320 - Main Bearing Kit 020 AE

- €26,20

€26,20

€26,20 - €26,20

€26,20

Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.

Main bearing kit 0.020" undersize OEM AE

Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994

Fitment Notes DEFENDER 1986-2006 — 2.5 Diesel NA (from Eng. no. 12J43825C), 2.5 Turbo Diesel, 200Tdi, 300Tdi — crankshaft-to-block main bearing set, 0.020in undersize
DISCOVERY 1 1989-1998 — 200Tdi, 300Tdi
RANGE ROVER CLASSIC — 200Tdi, 300Tdi

Alternative Codes

RTC478320

In stock 2 units

2 · Gouda 0 · Drachten

Express delivery available

When will my order arrive?

Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
Netherlands / Belgium / Germany: 2–4 working days.
Other EU countries + UK: 4–8 working days.
Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is the RTC478320 main bearing kit for?

It's a crankshaft main bearing set machined 0.020 inch undersize, for 2.5 litre diesel engines including 200Tdi and 300Tdi. Fits Defender (from engine number 12J43825C), Discovery 1, and Range Rover Classic with these diesel engines.

Does this kit cover the full crankshaft?

Yes, one RTC478320 kit is a complete main bearing set for one engine, covering every main bearing journal. Only one kit is needed per rebuild.

Why does fitment start from a specific engine number?

Land Rover changed the crankshaft or bearing specification at engine number 12J43825C, so earlier Defender engines need a different bearing set. Check your engine number plate before ordering.

Why do main bearings need to be undersize?

Undersize bearings are typically fitted when the crankshaft journals have been reground to remove wear or scoring, common practice on a rebuild. Standard-size bearings won't give correct clearance on a reground crank.