523240 - Outer crankshaft seal halves by AftermarketEngine Part Land Rover Range Rover Defender, Series

523240 - Crankshaft Oil Seal – Outer – Halves

- €15,30

€15,30

€15,30 - €15,30

€15,30

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

Crankshaft Oil Seal is the outer (rear) crankshaft seal in the engine sealing arrangement, fitted where the crankshaft exits the cylinder block.

Supplied as a two-piece (half) seal, it locates around the crankshaft between the block and the rear main bearing cap and prevents engine oil escaping past the rotating shaft. Suits the 2.25L petrol and diesel engine.

Vehicle Model Land Rover Defender up to 2016
Land Rover Series 2 and 3

Fitment Notes SERIES II & III — 2.25L petrol and diesel engine
DEFENDER — 2.25L engine (1983-1986)
SERIES II 1958-1961 — 2.0 Diesel engine

Alternative Codes

523240BR 1639

In stock 15 units

13 · Gouda 2 · 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 does the 523240 crankshaft oil seal do?

The 523240 crankshaft oil seal is the outer (rear) main seal, fitted where the crankshaft exits the cylinder block. It seals around the rotating crankshaft to stop engine oil escaping past the shaft. It suits the 2.25L petrol and diesel engine used in the Series 2 and 3 and early Defenders.

Why is this crankshaft seal supplied in two halves?

This crankshaft oil seal is a two-piece design because it fits around the crankshaft between the block and the rear main bearing cap, where a one-piece ring can't be slipped over the shaft. The two halves locate together around the journal to form the seal.

Which vehicles and engines does this seal fit?

This seal fits the 2.25L petrol and diesel engine in the Land Rover Series 2 and 3, and the Defender with the 2.25L engine from 1983 to 1986. The earlier Series 2 from 1958 to 1961 with the 2.0 diesel engine also uses it. Confirm your engine before ordering.

When should the rear crankshaft seal be replaced?

The rear crankshaft seal typically needs replacing when oil appears at the back of the engine, around the bellhousing joint, since a worn seal lets oil weep past the crankshaft. It's usually renewed while the gearbox or engine is out, as access is limited once everything's assembled.