Skip to content
  • 💳 Spend less, get more 💳
  • 💳 Spend less, get more 💳
O.S. ShopO.S. Shop
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • Parts
    • Engine Parts
    • Screws, Bolts & Washers
    • Propellers & Accessories
    • Option Parts
    • Replacement Parts
  • Uncategorized
  • Engines/fuel
    • Engine Accessories
    • Nitro Engines
    • Fuel & Accessories
  • Maintenance
    • Nitro Engine Tools
    • Tools
  • Electronics
    • Electric Motors & Esc’s
Home / Parts / Engine Parts
  • O.S. FS-91 Surpass Valve Assembly Intake -O.S. Shop osm45960001
  • O.S. Venturi: 55HZ, 105HZ -O.S. Shop osm28712000
Sale!
O.S. Engines Cylinder Head
O.S. Engines Cylinder Head - Image 2
O.S. Engines Cylinder Head -O.S. Shop osm29074020 1

O.S. Engines Cylinder Head

$89.99 Original price was: $89.99.$53.99Current price is: $53.99.

SKU: 141318 Categories: Engine Parts, Parts Tag: O.S.
  • Online customer care, always here for you.
  • Secure Payments, Secure Shopping
  • Free 1 year warranty period
  • Product guarantee 100% satisfaction
Browse
  • Electronics
    • Electric Motors & Esc's
      • Electronic Speed Controls
        • Airplanes
  • Engines/fuel
    • Engine Accessories
      • Air Filters
        • Dry Filters
        • Filter Assemblies
      • Engine Storage
      • Glow Plugs
      • Tuned Pipe Manifolds
      • Tuned Pipes
        • .21+
    • Fuel & Accessories
      • Fuel Filters
    • Nitro Engines
      • .12 (2.1cc)
      • .21 (3.5cc)
        • Off Road
        • On Road
  • Maintenance
    • Nitro Engine Tools
      • Flywheel Tools
        • Boats
      • Piston & Crankshaft Locks
    • Tools
      • Electric Screwdriver Tips
        • Hex Tips
  • Parts
    • Engine Parts
      • Engine Bearings
      • Misc Engine Parts
      • Novarossi
      • O.s. Engines
        • Helicopters
    • Option Parts
    • Propellers & Accessories
    • Replacement Parts
      • Traxxas
    • Screws, Bolts & Washers
      • Cars & Trucks
  • Uncategorized
  • Description
  • Reviews (0)

This is a replacement O.S. Engines Cylinder Head for the O.S. 91HZ-PS Helicopter Engine.

This product was added to our catalog on June 17, 2009

Reviews

There are no reviews yet.

Be the first to review “O.S. Engines Cylinder Head” Cancel reply

Related products

Sale!
O.S. Carburetor #12F: 12XZ
Quick View

Engine Parts

O.S. Carburetor #12F: 12XZ

$109.99 Original price was: $109.99.$65.00Current price is: $65.00.
Sale!
O.S. Magnesium Outer Head (Speed .21)
Quick View

Engine Parts

O.S. Magnesium Outer Head (Speed .21)

$139.99 Original price was: $139.99.$69.00Current price is: $69.00.
Sale!
O.S. Cylinder Assembly Rebuild Kit: 21XZ-R VII
Quick View

Engine Parts

O.S. Cylinder Assembly Rebuild Kit: 21XZ-R VII

$249.99 Original price was: $249.99.$60.00Current price is: $60.00.
Sale!
O.S. Cylinder & Piston: 21XZ-B Speed Spec III
Quick View

Engine Parts

O.S. Cylinder & Piston: 21XZ-B Speed Spec III

$159.99 Original price was: $159.99.$71.00Current price is: $71.00.
Sale!
O.S. Carburetor 12F3: T1201 Speed
Quick View

Engine Parts

O.S. Carburetor 12F3: T1201 Speed

$124.99 Original price was: $124.99.$67.00Current price is: $67.00.
Sale!
O.S. 22C-B Carburetor (B2102)
Quick View

Engine Parts

O.S. 22C-B Carburetor (B2102)

$139.99 Original price was: $139.99.$80.00Current price is: $80.00.
Sale!
O.S. Crankshaft: 21XZ-R
Quick View

Engine Parts

O.S. Crankshaft: 21XZ-R

$139.99 Original price was: $139.99.$77.00Current price is: $77.00.
Sale!
O.S. Cylinder & Piston: 21VZ-M
Quick View

Engine Parts

O.S. Cylinder & Piston: 21VZ-M

$159.99 Original price was: $159.99.$85.00Current price is: $85.00.
MY ACCOUNT
  • Cart
  • Checkout
  • My account
  • Wishlist
legal
  • Privacy Policy
  • Shipping & Returns
  • FAQ
  • Returns & Exchanges
  • Term and Conditions
customer service
  • Delivery
  • Payment Method
  • Contact Us
  • About Us
Signup for Newsletter
Stay up to date with news and promotions by signing up for our newsletter

    Copyright 2026 © www.prefixos.com
    • Parts
      • Engine Parts
      • Screws, Bolts & Washers
      • Propellers & Accessories
      • Option Parts
      • Replacement Parts
    • Uncategorized
    • Engines/fuel
      • Engine Accessories
      • Nitro Engines
      • Fuel & Accessories
    • Maintenance
      • Nitro Engine Tools
      • Tools
    • Electronics
      • Electric Motors & Esc’s
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.