JBM Industries

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Aircraft Engine Replacement Parts - By Make and Model

Not Engine Specific

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Exhaust Springs  $5.75 USD (Each)
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Stainless Steel Exhaust Springs eliminate hydrogen embrittlement caused by rust.  2.4 inch inside hooks (62mm) Can stretch to 4 inch.
Fits most all Rotax exhaust, but be sure to MEASURE !

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Hourglass Vibration Isolators
$3.80 USD (Each)
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Hourglass shape for wide frequency absorbtion range.  9 lb in shear, 50 lb in compression, 15 lb in tension.  6mm studs 11mm long, 19mm rubber.   Radiators (582/618), Instrument Panels, Exhaust, etc.

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Carb Vacuum Plugs $4.00 USD (Each)

Carburetor Vacuum Plugs for unused primer ports. These handy little things replace the easily rotted and cracked original equipment. Useful on any Bing or Mikuni carburetor.

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Ignition Boots  $12.00 USD (set 8)

Real RUBBER BOOTS for IGNITION WIRES. Fits both cap and coil ends.  These little boots age crack and rot very quickly. These hand made replacements are made from the same rubber as our carburetor sockets.
Replacement is easy: Just remove the ignition wire from cap or coil by unscrewing the wire. It fits on a threaded "nail".

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Fuel Tank Grommets  $5.00 USD (PK 4)

Fuel Tank Grommets made from the same rubber as our Carb Sockets. Just grease them up and push them into any 1/2 inch diameter hole in your fuel tank. Grease your barb, and push it through the grommet. (JBM does not sell barbs)  If you need to install a grommet in a plastic tank, use a Brad Point drill bit. Be sure there are no sharp edges.

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Throttle Cable Adjuster $2.00 USD (Each)

Cover grommets made from our high quality rubber so they will last a long time.  Cable grommets prevent dirt and water from entering the carburetor due to vacuum. Fit Mikuni carburetors, too.

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GSKT-Bowl-PAP  $2.00 USD (Each)

Bowl Gasket Paper.  Bing Float Bowl Gasket.  Standard non-stick gasket material as found on many carburetors.

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GSKT-Bowl-COMP  $4.00 USD (Each)

Bowl Gasket Composite. Bing Float Bowl Gasket.  Material much like original cork, but mixed with rubber as a composite for less compression set.  Our softest gasket.

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Bing O-Ring Kit  $6.00 USD (Kit)

O-Ring Gasket for top of BING model 54 carburetor. Vacuum can pull a lot of dirt and water around your slide. O-Ring fits in the counter-bore in the carburetor body. Made of Viton Rubber.

Hex head stainless steel screws will never rust and replace the chewed-up slot headed screws that might be rusty.

Rotax 912 / HKS

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Socket-912/HKS  $76.00 USD (Each)
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These flange sockets can be used with paper gaskets if you feel that you need them, and the sealing rib will not be harmed in any way. Some 912 Rotax engines also seal with an O-ring. This can become damaged, lost, or pinched. Compare to Rotax part #267-787 @ $105.00 each.

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Stainless Steel Clamps $3.80 USD (Each)

Worm Clamps for our Aircraft and Motorcycle Carburetor Sockets. Working range 1 13/16" to 2 3/4". These have special liner tail for soft rubber installation.

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O-Ring 44mm (Older) $4.00 USD (Each)
O-Ring 47mm (Newer) $4.00 USD (Each)

Some 912 Rotax engines also seal with an O-ring. This can become damaged, lost, or pinched.
There are two sizes of O-ring so you must measure:. Compare to Rotax part #230-290 @ $7.50 to $9.47 each and #230-300 @ $7.52 each.

Rotax 582 / 618

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‚ÄčGSKT-582-WJ  $12.00 USD (Pair)

ROTAX 582 Water Jacket Gaskets for cylinder head. Sold by the pair only. TSR Material.  Slightly different than original in that these are molded to a cross-section more like an O-ring. This is a molded part, not lathe-cut. Compare to Rotax part #850-040 "Rubber Ring" @ $23.99 each.

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GSKT-582-Head  $12.00 USD (Pair)

Rotax 582 Cylinder Head O-Rings. Sold by the pair only. This is the most commonly changed part that seals cylinder head to cylinder liner. These are made from Dupont "Viton" material for excellent compression set and high heat use.  Compare to Rotax part #850-540 @ $24.49 each.

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GSKT-582-Base  $7.00 USD (Each)

Rotax 582 cylinder base gasket made with non-stick material .030" thick.  Compare to Rotax part #850-775 @ $21.51 each.

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GSKT-582-WP  $2.00 USD (Each)

Rotax 582 Water-pump cover gasket. Non-stick material .016" thick.  Compare to Rotax part #831-616 @ $10.41 each.

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GSKT-582-EX  $4.00 USD (Each)

Rotax 582 or 532 Exhaust gasket.  High Temp material with metal mesh to prevent blow-out. Coated with Non-Stick Graphite for easy removal. Compare to Rotax part #850-633 @ $14.43 each.

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Socket-582  $28.00 USD (Each)

JBM Industries makes a high quality carburetor socket for your Rotax two-cycle engine using a BING model 54 carburetor. JBM sockets are made from our special TSR compound. Compare to Rotax part #850-633 @ $10.33 each.

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Socket-Silencer  $39.00 USD (Each)

JBM Industries makes a boot that will not crack and is much more rigid and long lasting than original equipment boots, yet costs the same. These really make a difference! Fits Bing model 54 & 64 carbs.  Fits 74mm / 3 inch diameter hole. Groove / 3mm slot.

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Stainless Steel Clamps $3.80 USD (Each)

Worm Clamps for our Aircraft and Motorcycle Carburetor Sockets. Working range 1 13/16" to 2 3/4". These have special liner tail for soft rubber installation.

Rotax 377 / 447 / 503

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GSKT-503-IN  $2.00 USD (Each)

Rotax 503, 447, or 377 intake gasket.  Single or dual carburetors.  Non-Stick material. .032" thick 4 pcs required if you have air-shroud.  Compare to Rotax part # 831-866 @ $7.24 each.

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GSKT-503-HEAD  $12.00 USD (Pair)

Rotax 503 Head Gasket set.  Soft aluminum material. -- .032" thick
Compare to Rotax part # 831-881 @ $13.28 each.

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GSKT-503-BASE $7.00 USD (Pair)

Rotax 277 and 503 cylinder base gasket Non-Stick material .030" thick.  Compare to Rotax part # 831-855 @ $4.91 each.

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GSKT-447-EX  $4.00 USD (Each)

Rotax 447 or 377 exhaust gasket.  4 pcs required if you have air-shroud.  High Temp metal mesh graphite.  Compare to Rotax part # 850-114 @ $10.46 each.

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GSKT-503-EX  $4.00 USD (Each)

Rotax 503 exhaust gasket.  4 pcs required if you have air-shroud.  High Temp with metal mesh material and non-stick graphite coating.  Compare to Rotax part # 831-842 @ $11.16 each.

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Socket-447/503  $28.00 USD (Each)

Carburetor sockets for your Rotax 377/447/503 two-cycle engine using a BING model 54 carburetor. JBM sockets are made from our special TSR compound. Compare to Rotax part #377-503 @ $49.64 each.

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Stainless Steel Clamps $3.80 USD (Each)

Worm Clamps for our Aircraft and Motorcycle Carburetor Sockets. Working range 1 13/16" to 2 3/4". These have special liner tail for soft rubber installation.

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GSKT-Singlecarb-447 $2.00 USD (Each)
GSKT-Singlecarb-503  $2.00 USD (Each)

Fits intake manifold: Single carb configuration Rubber Ring from TSR material 
78 x 1.5 x 3.5 mm ( 377 or 447 )
83 x 1.5 x 3.5 mm ( 503 )
Compare to Rotax part # 850-190 @ $4.12 and 850-150 @ $6.67

Rotax Gearbox

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GSKT-B-Gearbox  $9.00 USD (Each)

Rotax "B" type gearbox gasket.  Compare to: Rotax part # 930-536 @ $12.29 each.

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GSKT-C-Gearbox  $7.00 USD (Each)

Rotax "C" Geabox gasket made with non-stick material. .016" thick.  Compare to Rotax part # 950-211 @ $16.52 each.

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GSKT-E-Gearbox  $8.00 USD (Each)

Rotax "E" type Gearbox Gasket.  Compare to Rotax part # 950-215 @ $19.04 each.