ASP FS91AR / Magnum XL .91 4‑Stroke RC Engine Manufacturer Parts

Official OEM part numbers and exploded diagram reference for the ASP FS91AR, also sold as Magnum XL .91 — ideal for parts lookup and repairs.

Description

Manufacturer-supplied OEM part numbers and exploded-parts reference for the ASP FS91AR four‑stroke engine, sold as Magnum XL .91. Accurate fitment and part names for pistons, camshaft, valves, carburetor, crankcase, bearings, gaskets and linkage—use for ordering genuine replacements, repairs, and restorations.

Each part is selected to match ASP factory tolerances for accurate fit and consistent performance, making installation straightforward and minimizing break‑in time. Product pages include compatibility notes, part images, and basic installation tips to assist hobbyists performing field repairs or full engine overhauls. Order individual parts as needed — fast shipping, returns, and a limited warranty included.

Suggested upgrades:

Restore compression: piston, piston rings, head gasket
Fix fuel/air issues: carburetor body, needle valve, spraybar
Replace ignition: glow plug
Repair valve train: valves, springs, rocker components
Eliminate leaks: crankshaft seals, manifold gasket

Warranty & shipping Factory‑direct parts with limited warranty. Worldwide shipping and returns.

Additional information

Part No.

12122(2), 80711, 80123(5), 80725(4), 80717(2), 80718(2), 80719, 80841, 12118(2), 80841(2), 80712(2), 80724(2), 80716, 80517(2), 91103F, 80473, 80601A, 80605(2), 80607, 80606B, 91112F(2), 80710/80713, 91232F, 91236F, 91231F, 91207F, 91208F, 91204F, 91726(2), 12845(4), 91728(2), 80729(2), 80873A, 12518(2), 91137, 12114, 12819, 91872F, 80816, 80134(2), 80834, 70801F, 40134(4), 91102F, 91111F, 91210F, 80110, 91101FS, 160109, 91218, 61219, 80238, 80220, 80221, 80234, 80429, 80864, 46407, 80866, 70813F, 12845, 80810, 80814, 70827F, 46825, 12828, 70863F, 12847, 12830, 12833, 12862, 12829, 12861, 91213F