


HPI Oil Dipstick Stopper — Ø10 Universal
The HPI Oil Dipstick Stopper — Ø10 Universal — a universal clamp-on dipstick stopper that keeps the oil dipstick seated under hard driving.
Brand: HPI
Product Name: HPI Oil Dipstick Stopper — Ø10 Universal
Line: HPI motorsport fitment
Fits: Ø10 OEM dipstick pipes (2JZ-GTE, RB26DETT, SR20DET, FA20 etc.)
Kit: 1 × clamp (OD 37 mm, 49 mm with bolt), 1 × hook-spring, 2 × M4 bolts, 1 × M6 bolt, 2 × washers
Part Number: HPCG-LGS-01
Many circuits now mandate this part as a mandatory fitting. Install with the clamp around the dipstick tube and the spring hooking the dipstick handle.
A universal clamp-on stopper that bolts around the dipstick tube on an engine with a Ø10 OEM dipstick pipe, with a hooked spring that keeps the dipstick seated. Prevents the dipstick from being pushed out by crankcase pressure on circuit — an oil-spill event most circuits now mandate against.
Features:
- Universal Fit: Fits Ø10 OEM dipstick pipes across most Japanese performance engines.
- Clamp + Spring: Clamp bolts around the dipstick tube; spring keeps the dipstick seated.
- Mandatory on Many Circuits: Required fitting at many Japanese circuits for crankcase-pressure management.
- 2JZ, RB26, SR20, FA20: Compatible out of the box with the common Japanese performance engines.
- Full Hardware Kit: Includes bolts, washers and spring — ready to install.
For circuit-run cars where crankcase pressure can push the dipstick out.

