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Suit Nissan Patrol with TB42 (qty 15) , TB45 (qty 15) and TD42 (qty 14) Motors
Suit Nissan Navara D22 with QD32 (qty 10), TD27 (qty 10) & VG30 (qty 18) motors.
These are the Rubber washers that go between the rocker cover and the Rocker cover bolt.
The must be fitted in conjunction with the steel washers, or they will get damaged by the screw head.
Quantities per engine are listed above, but these are Sold INDIVIDUALLY
It is common for these to get impregnated with oil, which causes them to swell and fall apart.
If these are not fitted, the rocker cover will get damaged and distorted when the bolts are tightened.