gsxr
Full Access Member
Most LR4 owners are aware of the TSB RCRIT-21V635-5779 from early 2022, for "Gasoline Fuel Tank Flange Assembly Cracking". The full PDF is at this link. What's not clear in the TSB is what the new parts look like. There have been some threads in the past (like this one) discussing confusion about what is, or is not, included as part of the TSB.
I recently had to replace my fuel pump (entire saga here), and I had not yet had this TSB performed, I opted to do it myself. There is no Land Rover dealer in Montana, and it's a 10 hour drive each way to the dealer in Boise. I'm not aware of any indy shops nearby that I'd trust to do the work correctly. Since I had to drop the tank to replace the fuel pump, I figured I might as well upgrade to the new parts specified by the TSB. No point re-installing a defective part after removing it, right?
Part list from the TSB:
I ordered the 5 parts above from OEM Parts Online, the order was fulfilled by JLR South Bay in Torrance CA. Total cost was ~$170 including shipping.
To replace these items yourself, you must remove the fuel tank from the truck. Click here for a thread which documents tank removal.
Once the tank is out, follow the steps in this thread to remove the existing, integrated flange+filter assembly (this is the defective item that you will be replacing). You DO NOT need to remove the fuel pump, however if your truck has 150kmi or more and is still on the original pump... consider proactive replacement. My original pump failed at 160kmi. Details about the new OEM VDO pump are in that same thread.
I neglected to take pictures of the old + new flange side by side, ooops.
Here are the first pictures, of the new style flange (without filter), and the new O-ring. The new O-ring is red, the original was green, I assume the change in color indicates a different material. The old O-ring appeared reusable but I didn't want to gamble to save $13.
I recently had to replace my fuel pump (entire saga here), and I had not yet had this TSB performed, I opted to do it myself. There is no Land Rover dealer in Montana, and it's a 10 hour drive each way to the dealer in Boise. I'm not aware of any indy shops nearby that I'd trust to do the work correctly. Since I had to drop the tank to replace the fuel pump, I figured I might as well upgrade to the new parts specified by the TSB. No point re-installing a defective part after removing it, right?
Part list from the TSB:
LR112785 - Fuel tank flange assembly (new, updated flange) - $60 MSRP
LR175172 - Fuel filter (new style filter, requires bracket below) - $88 MSRP
LR113338 - Bracket for fuel filter (required to mount filter above) - $19 MSRP
LR117476 - Fuel tank flange O-ring (recommended to replace) - $13 MSRP
CN100509 - Hose clamp for fuel tank inlet pipe - $2 MSRP
I ordered the 5 parts above from OEM Parts Online, the order was fulfilled by JLR South Bay in Torrance CA. Total cost was ~$170 including shipping.
To replace these items yourself, you must remove the fuel tank from the truck. Click here for a thread which documents tank removal.
Once the tank is out, follow the steps in this thread to remove the existing, integrated flange+filter assembly (this is the defective item that you will be replacing). You DO NOT need to remove the fuel pump, however if your truck has 150kmi or more and is still on the original pump... consider proactive replacement. My original pump failed at 160kmi. Details about the new OEM VDO pump are in that same thread.
I neglected to take pictures of the old + new flange side by side, ooops.
Here are the first pictures, of the new style flange (without filter), and the new O-ring. The new O-ring is red, the original was green, I assume the change in color indicates a different material. The old O-ring appeared reusable but I didn't want to gamble to save $13.
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