Honda TRX350 parts for early FourTrax service
The Honda diagrams below verify one 1986 brake reference and one 1987 engine reference. The collection includes other TRX350 years too, so use the complete model code and year when matching a repair.
Service the 1986 front drum brake
The TRX350 front brake-shoe set replaces Honda reference 45151-HA7-671. Honda’s 1986 front-brake diagram identifies that shoe reference for the TRX350. The product is sold as one front shoe set; compare the fitted drum and brake parts before ordering.
Replace the 1987 valve-stem seal
The valve-stem seal replaces Honda reference 12208-413-003. Honda’s 1987 FourTrax 350 camshaft diagram identifies that number as a valve-stem seal. Each seal is sold individually; use the correct cylinder-head diagram or service manual to plan the required quantity.
Match the model before choosing parts
Start with the full code and year: Honda’s factory TRX350 catalog covers the 1986 and 1987 FourTrax 350. Later TRX350 generations use their own model codes and year-specific applications; the shared TRX350 name alone does not prove a match.
Keep the repair locations distinct: the brake-shoe set is for the front drum. The valve-stem seal belongs in the cylinder head. Match the relevant assembly and original reference rather than choosing by general category alone. The diagram checks here cover the front brake in 1986 and cylinder head in 1987; one year does not extend the other component’s application.
Check changed assemblies: if the engine, cylinder head or brake hardware has been replaced, identify that assembly and compare its markings with the correct parts diagram.
Honda references: 1986–1987 TRX350 factory parts catalog, 1986 front-brake panel and 1987 camshaft diagram.
Adjusting the handlebar setup?
Compare universal handlebars and grips for a custom setup. Check bar diameter, control fit, cable reach and clearance before ordering. Universal parts may need modification and are not confirmed direct fitment.
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Honda TRX350 Parts questions
Which TRX350 years are verified in these examples?
Honda’s 1986 TRX350 front-brake diagram confirms the shoe reference shown here. The 1987 FourTrax 350 camshaft diagram confirms the valve-stem seal reference. Treat each as its own model-year example.
Which TRX350 year does the front shoe diagram confirm?
The 1986 Honda front-brake diagram identifies reference 45151-HA7-671 for the TRX350. The product is sold as one front shoe set; compare your brake assembly and year before ordering.
How many valve-stem seals should I order?
Honda’s 1987 TRX350H camshaft diagram identifies valve-stem seal 12208-413-003. Each seal is sold individually. Check the cylinder-head parts diagram or service manual for the quantity needed for your exact model.
Will these parts fit every TRX350 generation?
No. These examples verify a specific 1986 brake reference and a specific 1987 engine reference. Other TRX350 model codes and years have separate applications, so match the full model code and year for each repair.