Engine casing cover bolt kit for NX250 Dominator 1988–1992

This 30x-bolt kit replaces the fixings securing the original external engine covers listed below on the Honda NX250 Dominator 1988–1992. The allocation separates the casing and secondary cover positions, so you can see exactly which mounting groups are included.

What you receive

• 14x A2 (304) stainless steel bolts for the right crankcase cover.
• 11x A2 (304) stainless steel bolts for the left crankcase cover.
• 2x A2 (304) stainless steel bolts for the sprocket cover.
• 3x A2 (304) stainless steel bolts for the water pump cover.
• 1x Biker Bling anti-seize compound pack (7 g).

The bolt total excludes the separate anti-seize pack. Photographs may show generic bolt examples; the contents list gives the supplied quantities.

Original Honda fixing references

These numbers identify Honda’s original fixings, not Biker Bling product codes. The supplied bolts are model-specific aftermarket replacements, not genuine Honda-branded parts. Where alternative references are identified, they describe the same fixing positions rather than additional kit contents or a claimed supersession.

Important fitment notes

• Compatibility: For Honda NX250 Dominator 1988–1992 with the original cover arrangement listed above. Check the exact year, variant and fitted covers before installation.
• Correct position: Keep the mounting groups separated and match each replacement to its intended hole. Bolts for different cover positions are not automatically interchangeable.
• Materials: The supplied cover bolts are A2 (304) stainless steel. Their head appearance may differ from Honda’s originals.
• Exclusions: Covers, gaskets, seals, dowels, drain plugs, drain bolts, sealing washers, internal engine fixings and unrelated bracket fixings are not included.

The supplied right-cover group contains 14 bolts, as allocated in this retail kit. The checked original Honda right-cover diagram uses 13 fixing positions. Match the supplied bolts to the original holes and retain any unused bolt; do not add a fixing position.

When should you replace engine-cover bolts?

• Corroded or marked heads: Inspect the cover fixings before removal or servicing.
• Damaged threads or worn drive recesses: Replace unsuitable hardware and check the corresponding engine threads.
• Cover servicing: Check each fixing position and the sealing components before reassembly.

New bolts cannot repair a cracked cover, damaged sealing face, stripped thread or failed gasket. Investigate oil or coolant leaks rather than relying on extra tightening.

Fitting the engine casing bolts

• Follow Honda’s procedure for the exact cover, including draining fluids and renewing sealing components where required.
• Match every bolt to its original position, start it by hand and use Honda’s specified tightening order, torque and thread condition.
• Use anti-seize or other compounds only where the applicable instructions specify them. The included pack is not an instruction to lubricate every fixing.
• After assembly, check the relevant fluid levels and inspect disturbed covers for leaks. Have damaged threads or uncertain work checked by a qualified motorcycle technician.

For general advice, read our guide to protecting aluminium mounting threads. Honda’s workshop procedure takes precedence.

Customer questions

How many bolts are included?

30x replacement cover bolts, allocated above, plus 1x Biker Bling anti-seize compound pack (7 g).

Are dowels and drain plugs included?

No. This is a cover-fixing kit. Dowels, oil and coolant drain fixings, sealing washers, gaskets and engine components are not included.

Will new bolts repair a leaking cover?

New bolts alone will not repair a damaged cover, gasket or sealing face. Check the cause and follow Honda’s repair procedure.