Catalog/Tools
new · Tools · SKU 303-1451
Oil pressure test adapter cap — 3.0L V6 & 5.0L V8 (2010–2025)
AJ126 3.0 SCV6 and AJ133 5.0 V8 have no oil-pressure sensor. This cap lets you put a mechanical gauge on the engine.
$49
39 in the shop · Ships from Norman
Note
Gasoline engines only. Diesel and the newer Ingenium 3.0L inline-six need a different adapter.
Not sure if it fits? Write the shop with year, model, and engine and we'll sort it.
Checkout is in test mode. Use card 4242 4242 4242 4242.
- Fitment
- Gasoline AJ126 3.0L SCV6 and AJ133 5.0L V8, 2010–2025. Not diesel, not Ingenium I6.
- Brand
- Land Rover & Jaguar
Details
- OEM-style tool number 303-1451
- New, ships from Norman, Indiana
- Use with a standard oil-pressure gauge (typically 1/8" NPT)
- Gasoline AJ126 / AJ133 only
Also listed on eBay.
What it is
These AJ126 3.0L supercharged V6 and AJ133 5.0L V8 engines (supercharged or naturally aspirated, 2010–2025) have no oil-pressure sensor, so a normal test is a fight without the right cap. This adapter is that cap. Perfect for diagnosing low oil pressure, verifying engine health, or checking the pump after a rebuild.
How it works
- 1.Remove the factory oil-filter housing cap.
- 2.Transfer your existing oil-filter element into this test housing (or drop in a new filter).
- 3.Install the test cap in place of the original cap.
- 4.Connect any standard oil-pressure gauge (typically 1/8" NPT) to the port on the cap and read pressure like a traditional engine.
Notes
- Gasoline engines only. Diesel and the newer Ingenium 3.0L inline-six need a different adapter.
- Not sure if it fits? Write the shop with year, model, and engine and we'll sort it.
Demo
2011 Range Rover Sport — same process on the other gasoline AJ engines.
Watch on YouTubeFitment
Engines
- AJ126 3.0L supercharged V6 (gasoline)
- AJ133 5.0L V8, naturally aspirated or supercharged (gasoline)
Jaguar
- XF, XJ, F-Type, F-Pace and more with these engines, 2010–2025
Land Rover
- Range Rover (L322, L405 & L460): 2010–2025, 3.0L SC V6 & 5.0L V8
- Range Rover Sport (L494 & L320 with these engines): 2010–2025, 3.0L SC V6 & 5.0L V8
- Range Rover Velar (L560): 2018–2023, 3.0L SC V6 (limited applications)
- Discovery 5 (L462): 2017–2023, 3.0L SC V6 variants
- Discovery 4 / LR4: 2010–2016, 3.0L SC V6 & 5.0L V8
- Defender (L663): 2020–2025, 5.0L V8 P500 only — rare