Royal Enfield Interceptor 650 & Continental GT 650 Mounting Rubber Grommet – 148121/G

Genuine Royal Enfield spare part 148121/G is an individual rubber mounting grommet identified in factory-derived parts catalogues as GROMMET, 24X10.5X15. It appears in the fuel-tank and oil-cooling related mounting diagrams for applicable Royal Enfield 650 twins. Use the exact OEM reference to replace a missing, worn or damaged grommet without ordering an entire tank, oil cooler or mounting assembly.

What you are buying: ONE grommet, not a pair. A parts diagram showing two pieces needed for a motorcycle or subassembly is a fitting quantity, not an indication that this individual spare is sold as a two-piece pack.

Product identification & specifications

Confirmed model and assembly references

Fitment warning: Royal Enfield may use similar-looking rubber mounts in multiple locations. A shared OEM part number may appear in more than one assembly, but it does not make every grommet of the same nominal size interchangeable. Confirm the component number on the exploded diagram for your motorcycle and the exact installation position.

Where this grommet is used

1. Fuel tank mounting area

Selected Interceptor 650 and Continental GT 650 fuel-system catalogues explicitly show 148121/G as a grommet in the fuel-tank-related parts diagram. The grommet provides a rubber mounting interface. It is not the fuel-pump face seal, tank filler gasket, drain hose, fuel-line clip or the complete fuel-tank bush arrangement.

2. Oil cooler / cooling-system mounting area

Selected Continental GT 650 and 650-twin cooling-system catalogues list the 148121 grommet family in the oil-cooler assembly. A Euro V catalogue lists the exact 148121/G revision. Do not confuse this mounting grommet with the separate oil-cooler pipe O-rings, cooler guard grommets or fuel tank / oil cooler bush 585659.

3. Electrical or other mounting diagrams

The 148121 base number also appears in a Royal Enfield 650-twin electrical partsbook. This is a diagram-level observation, not evidence that every electrical bracket requires the /G suffix.

What will you receive?

1 × Genuine Royal Enfield Grommet – 148121/G (24 × 10.5 × 15).

Not included: a second grommet, mounting bolts, washers, fuel tank, fuel pump, fuel-pump seals, oil cooler, oil lines, separate bush 585659, other rubber mounts or any complete service kit. If your EPC lists quantity two, add two individual units to your cart.

How to identify the correct part before purchase

1. Check the Royal Enfield model and VIN, not only the registration year.
2. Locate the exact assembly being repaired: fuel tank, oil cooler or another diagram.
3. Find OEM base reference 148121 and determine whether your catalogue requires suffix /G.
4. Compare the original mount shape and nominal dimensions. Do not assume the dimensions specify diameter/height order.
5. Check the quantity required on the diagram separately from the one-piece sale quantity.
6. Inspect the surrounding bush, washers, sleeves and fastening hardware; replace other worn parts separately where needed.

When should a rubber mounting grommet be replaced?

Consider replacement when the original grommet is torn, missing, permanently compressed, excessively hardened, oil-damaged or no longer fits securely. Inspect adjacent mounts and the supported component for movement or abnormal vibration; a damaged mount may be one of several causes and should not be diagnosed from symptoms alone.

Installation notes and precautions

1. Support any fuel tank or oil cooler safely before removing mounting fasteners. Observe workshop procedures for fuel and hot-engine components.
2. Confirm the installation location and orientation from the VIN-specific exploded view.
3. Inspect the mounting hole, sleeve, washer and bracket for distortion or corrosion.
4. Fit without cutting, drilling, stretching excessively or using adhesive to force the grommet into place.
5. Use the factory fastener sequence and torque applicable to the assembly; no torque figure has been verified for this standalone grommet.
6. Check that fuel hoses, oil lines, electrical connections and nearby components are correctly routed and not pinched.
7. After reassembly, confirm secure mounting and check for leaks where a fuel or oil component was disturbed.

Professional installation is recommended for work requiring fuel-tank or oil-cooler removal.

Related OEM part numbers — do not confuse them

Frequently asked questions

What is 148121/G?

It is a genuine Royal Enfield mounting grommet identified as GROMMET, 24X10.5X15.

Is this a fuel-tank rubber or an oil-cooler grommet?

The same OEM grommet reference is shown in selected fuel-tank and oil-cooling diagrams. Order by exact part number and installation position.

Will it fit the Interceptor 650?

The exact /G revision is catalogued for selected Interceptor 650 Euro V configurations. Confirm your VIN-specific parts book.

Will it fit the Continental GT 650?

The exact /G revision is listed in selected Continental GT 650 Euro V fuel-system and cooling catalogues. Confirm the original number.

Is this suitable for all Interceptor 650 model years?

Not automatically. Some earlier catalogues show /F instead; /G replacement or interchangeability must be confirmed for your bike.

Does the price include two rubber grommets?

No. The selling unit is one piece. Two in an EPC diagram indicates two required for that installation.

What does 24X10.5X15 mean?

It is the nominal dimensional description in the OEM parts listing; the published text does not establish which dimension corresponds to each axis.

Is this the same as the 585659 bush?

No. 585659 is listed as a separate tank/oil-cooler bush.

Is this the fuel-pump O-ring or gasket?

No. Fuel-pump face and skirt O-rings have different OEM part numbers.

Does it include mounting nuts, bolts or washers?

No additional hardware has been confirmed as included. This listing is for one grommet.

Can this replace 148121/F?

The catalogue shows F and G suffixes, but universal interchangeability has not been independently established. Check updated EPC or dealer supersession.

Does this fit Super Meteor 650 or Shotgun 650?

Those applications have not been verified for exact SKU 148121/G. Do not order solely because they share a 650cc engine family.

How many do I need?

Some diagrams specify two per assembly, but requirements vary by location. Read the corresponding position and quantity on your model-specific EPC.

Why does a mounting rubber wear out?

Age, vibration, heat, fluid exposure, damage and compression may affect mounting rubbers. Inspect the actual part before replacement.

Will replacing the grommet stop vibration?

It may restore the intended mounting interface if defective, but vibration can have many causes. Diagnose all supporting mounts and hardware.

Can I fit it by comparing appearance alone?

No. Similar-looking grommets can vary in section and mounting application. Match the complete OEM part reference.

Is 148121/G genuine or aftermarket?

The SKU identifies a genuine Royal Enfield OEM part. Check physical packaging and supplier provenance for the item supplied.

What should I send for a fitment check?

Share motorcycle model, year, VIN or engine/frame reference as appropriate, photographs of the removed component and its mounting location.

Before you order from Under The Hood

Compare the part number and the fitment location carefully. Under The Hood supplies genuine Royal Enfield spares for repair and restoration; an incorrectly chosen grommet may look similar but not seat properly. Retain a complete parcel unboxing video for transit-damage, missing-item or incorrect-item claims, and refer to the published store policies for applicable terms and consumer rights.

Reference catalogues consulted

• Royal Enfield India February 2024 customer price list — OEM description and historical ₹5 MRP.
• Royal Enfield parts cross-reference at Bike-Parts Royal Enfield — exact /G and earlier /F /B references.
• 650-twin parts diagrams at Hitchcock’s Motorcycles — fuel/cooling/electrical context and typical installation quantity.
• Euro V Interceptor 650 and Continental GT 650 OEM parts diagrams, as reproduced by MotoGB — exact /G fuel-system and cooling applications.

Search references: Royal Enfield 148121/G; Interceptor 650 fuel tank grommet; GT 650 oil cooler grommet; 24x10.5x15 mounting rubber; Royal Enfield 650 twin mounting bush.