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GA5121 - Main Bearing Set – 2.4L TDCi

Original price - Original price €47,70
Original price
€47,70
€47,70 - €47,70
Current price €47,70
Aftermarket Part
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 Set – crankshaft main bearings for the 2.4L TDCi (Puma) diesel engine.

The main bearings form the pressure-fed running surfaces between the crankshaft journals and the cylinder block and main bearing caps, locating the crankshaft in the block. Renewed as a set during bottom-end overhaul.

Supplied in standard size. A crankshaft that has been reground requires the corresponding undersize bearings.
Vehicle Model Land Rover Defender up to 2016
Fitment Notes DEFENDER 2007-2011 (Puma) — 2.4L TDCi Puma engine ONLY. Crankshaft main bearing set.
Does not fit the 2.2 TDCi Defender (2012-2016) or earlier Td5/300Tdi engines.
No AllMakes Webcat fitment data available; engine application taken from the product description.
Alternative Codes
GA5121

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).


When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business dayscontact us before ordering.

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 GA5121 main bearing set for?
GA5121 is a crankshaft main bearing set for the 2.4L TDCi Puma engine, sitting between the crankshaft journals and the cylinder block and caps to locate the crank and carry the pressure-fed oil film.
Will this bearing set fit any Defender diesel?
No. GA5121 is for the 2.4L TDCi Puma engine only, built 2007 to 2011. It does not fit the later 2.2 TDCi Defender (2012-2016) or the earlier Td5 and 300Tdi engines, since bearing dimensions differ between these engines.
When do main bearings need replacing?
Main bearings are renewed as a set during a bottom-end overhaul, typically when oil pressure drops, a knocking noise develops from the bottom of the engine, or the crankshaft is being reground.
What if my crankshaft has been reground?
A reground crankshaft needs the corresponding undersize bearing set instead of this standard-size kit. Check your crank's regrind spec before ordering to get the correct bearing clearance.