Lifetime Warranty
Land Rover Range Rover P38 THOR Inline Kit
$106.00
Proven D2 Fix, Now for P38 THOR
The same battle-tested Inline Thermostat Kit that conquered the #1 overheating gremlin on thousands of Discovery 2s – now tailored for your 99-02 P38 THOR V8. Swap fragile factory plastic for rugged alloy, lock in steady temps with your choice of thermostat (or delete for testing or emergencies), and get fresh hoses for leak-proof peace of mind. Proven by 45+ years of off-road wrenching, near-zero returns, and a mountain of 5-star D2 success stories – this upgrade brings that legendary reliability to your luxury overlander. Don't wait for trouble; join the fix that's saved countless Rovers.
Dig Deeper
- Top 10 Reasons an Inline Thermostat Beats the Factory Setup
- Blog Video Explainer: Quick visual on perks like no-stat runs and simplified bleeding
- Top Third-Party Install Guide: 16K+ view D2 demo (core process mirrors P38)
- Official Extinct Thread on Land Rover Forums: 40+ pages of real-owner data and THOR tips
- Jump to Customer Reviews
- P38 Installation Instructions (PDF)
Click here to learn how to get combined shipping with an Extinct Motorsports order
- SKU:
- 164-180
- Availability:
- Usually ships within two days
- Bulk Pricing:
- Buy in bulk and save
- Buy 10 or above and get 10% off
Bulk discount rates
Below are the available bulk discount rates for each individual item when you purchase a certain amount
Product Description
Special kit designed specifically to fit 99-02 Land Rover Range P38 with the THOR engine. Provides much more consistent temperature around selected thermostat setting. Improved reliability over factory system. Includes two paper gaskets, your choice of temperatures in one high quality thermostat, hose tee that goes in place of factory thermostat, new lower radiator hose, new hose from coolant bottle to hose tee, bolts, and full instructions. Existing hose clamps and hoses are re-used. Thermostat delete option also available.
Extra thermostat elements, re-usable Fel-Pro gasket, and/or extra paper gaskets available as spares.
Optional re-usable silicone gasket shown below - installation either side of thermostat acceptable.
How to get combined shippng with Extinct Motorsports Order and Inline Thermostats order
- Add Land Rover Inline Thermostat Kit combined shipping option to any product on Extinct Motorsports
- Complete product order and checkout at Extinct Motorsports
- Receive order confirmation email with combined shipping coupon code for combined shipping (free shipping on inline order)
- Order inline thermostat same day for coupon code to be valid
- Enter coupon code on checkout from inline thermostats for free shipping.
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