Royal Enfield J-Series 350 Genuine Oil Strainer Cover O-Ring – 1570012/B

Replace a flattened, hardened, cut or leaking engine-oil strainer cover seal on a compatible Royal Enfield J-Series 350 motorcycle with this genuine Royal Enfield O-ring. The complete current manufacturer part number is 1570012/B; it may also be searched by the base reference 1570012.

This O-ring sits between the engine-oil strainer cover and the crankcase. When correctly installed with serviceable mating surfaces, it seals the cover opening and helps prevent engine-oil seepage from that joint.

Critical ordering warning: This listing contains one oil-strainer cover O-ring only. It does not include strainer cover 1570011/D, engine-oil strainer 1570009/D, internal-strainer O-ring RLN00034, oil filter, oil-filter cap or engine oil.

What This Product Is

• Genuine Royal Enfield oil-strainer cover sealing O-ring
• Exact current part number: 1570012/B
• Base catalogue and search reference: 1570012
• Used at the external oil-strainer cover joint on compatible J-Series 350 engines
• Normal quantity per motorcycle: 1
• Service seal intended for the specified crankcase cover location

What This Product Is Not

• Not oil-strainer cover 1570011/D
• Not engine-oil strainer assembly 1570009/D
• Not internal oil-strainer O-ring RLN00034
• Not oil-filter cap O-ring RLN00015
• Not crankshaft-hole plug O-ring 575012
• Not an oil drain-plug washer or O-ring
• Not the engine oil filter
• Not a complete oil-service kit
• Not a universal O-ring selected only by visual similarity

Key Features

• Genuine model-specific Royal Enfield service part
• Designed for the J-Series 350 oil-strainer cover sealing groove
• Helps maintain a leak-resistant joint between the cover and crankcase
• Exact OEM reference reduces size and application mistakes
• Suitable for replacement during applicable oil-strainer servicing
• Supplied individually for the specific external cover location

Confirmed Product Details

No unverified diameter, cross-section or material specification is stated. Order by exact part number and model-specific catalogue rather than trying to match an unknown seal by appearance.

Confirmed Compatibility

Model years are catalogue guides and can differ by country or registration date. Confirm the exact engine generation, VIN-specific parts catalogue and required seal location before ordering.

Do Not Order For

• Older Classic 350 UCE / BS3 / BS4 generation
• Older Bullet 350 UCE / BS3 / BS4 generation
• Thunderbird 350 or Thunderbird X 350 UCE
• Himalayan 411 or Scram 411
• Himalayan 450 or Guerrilla 450
• Interceptor 650, Continental GT 650, Super Meteor 650, Shotgun 650, Bear 650 or Classic 650
• The internal oil-strainer seal position that requires RLN00034
• The oil-filter cap position that requires RLN00015
• Any groove or component requiring a different part number

Related Service Parts—Sold Separately

What the O-Ring Does

The O-ring is compressed between the oil-strainer cover and the crankcase sealing surfaces. This creates the seal around the external strainer-access opening after the cover is installed.

An O-ring can lose sealing ability if it becomes cut, pinched, twisted, permanently flattened, hardened, swollen, contaminated or incorrectly seated. Correct cover condition, clean mating surfaces and correct installation are also necessary; replacing the O-ring alone cannot repair a cracked cover or damaged crankcase.

What You Will Receive

1 × Genuine Royal Enfield oil-strainer cover O-ring – 1570012/B

Strainer cover, internal strainer, other O-rings, oil filter, drain plug, engine oil, sealant, tools and installation labour are not included unless specifically shown and stated otherwise.

When Should It Be Replaced?

• The existing seal is cut, nicked or torn
• The O-ring is hard, brittle, swollen or permanently flattened
• It was pinched or stretched during removal
• Engine oil is correctly traced to the strainer-cover joint
• The workshop procedure requires seal replacement after opening the cover
• The original O-ring is missing or its exact service history is unknown

Diagnostic and Inspection Note

Clean the area and identify the exact source before ordering. Oil around the lower crankcase can travel from another joint and collect near the strainer cover. A new 1570012/B O-ring will not repair a cracked 1570011/D cover, scratched crankcase sealing surface, loose or incorrectly installed cover, damaged internal components or leakage from another nearby location.

Also confirm that the required seal is the external cover O-ring. The crankcase catalogue separately lists RLN00034 for the internal oil-strainer position; these O-rings must not be confused.

Installation Notes

• Switch off the engine, allow it to cool and secure the motorcycle.
• Follow the model-specific Royal Enfield workshop procedure.
• Manage or drain engine oil as required before removing the cover.
• Clean the surrounding crankcase area to prevent contamination.
• Remove the old seal without scratching the cover or crankcase groove.
• Compare the new O-ring with the specified part before oil contact or installation.
• Inspect cover 1570011/D and both mating surfaces for cracks, distortion and scoring.
• Lubricate the O-ring only as directed by the workshop procedure.
• Seat it evenly without twisting, stretching, pinching or cutting it.
• Install and tighten the cover to the workshop-manual specification.
• Restore the correct engine-oil level and inspect carefully for leakage before riding.

Professional installation is recommended because an incorrectly fitted seal can leak engine oil and an incorrect oil level can damage the engine.

Important Return-Prevention Check

Before opening the package, confirm all of the following:

• The required complete part number is 1570012/B or base reference 1570012
• Your motorcycle uses the compatible Royal Enfield J-Series 350 crankcase
• You need the external oil-strainer cover O-ring
• You do not require internal-strainer O-ring RLN00034 or oil-filter cap O-ring RLN00015
• The leak has not been caused by a cracked cover or damaged crankcase sealing face
• You understand that only one O-ring is supplied

We do not offer exchanges. A correctly supplied seal is not returnable or refundable after opening, oil contact, stretching, installation, testing, use, contamination, cutting or damage. Ordering 1570012/B for the wrong O-ring position does not make the supplied part incorrect. Record a continuous unboxing video and report any wrong, missing or transit-damaged item within 24 hours with the required proof.

Frequently Asked Questions

What is Royal Enfield part 1570012/B?

It is the genuine O-ring that seals the external engine-oil strainer cover on compatible J-Series 350 motorcycles.

Is 1570012 the same reference?

Yes. Parts catalogues often display the base number 1570012, while the confirmed complete manufacturer part number is 1570012/B.

Which motorcycles use this O-ring?

Confirmed applications include Meteor 350, Classic 350 Reborn, Hunter 350, the new J-Series Bullet 350 and Goan Classic 350.

Does it fit the old Classic 350 UCE?

No. Do not order it for the earlier UCE-generation Classic 350 based only on the 350 cc engine capacity.

Does it fit the old Bullet 350 UCE?

No. It is for the newer J-Series Bullet 350 crankcase layout.

Does it fit the Goan Classic 350?

Yes. The J-Series 350 service application for the Goan Classic specifies the 1570012 oil-strainer cover O-ring.

Is strainer cover 1570011/D included?

No. The alloy cover is sold separately.

Is engine-oil strainer 1570009/D included?

No. This listing contains only the external cover O-ring.

Is this the same as RLN00034?

No. RLN00034 is a separate O-ring for the internal oil-strainer position. Do not interchange the two seals.

Is this the oil-filter cap O-ring?

No. The oil-filter cap uses a different O-ring reference.

How many O-rings are supplied?

One genuine 1570012/B O-ring is supplied.

Should it be replaced whenever the cover is removed?

Follow the model-specific workshop procedure. Replace it whenever required by the procedure or if it is cut, flattened, hardened, swollen, pinched or otherwise damaged.

Will this O-ring stop every oil leak near the cover?

No. The cover, crankcase sealing surface, installation and other nearby joints must also be inspected.

Can a similar-looking generic O-ring be used?

Visual similarity does not confirm the correct size, material or oil resistance. Use the exact specified part number.

Can I install it myself?

Only if you are competent in motorcycle oil-system service and have the correct workshop information. Professional installation is recommended.

How should I confirm fitment?

Check the full part number, engine generation, VIN-specific catalogue and exact seal location before opening the package.

Buy Royal Enfield J-Series 350 Oil Strainer Cover O-Ring Online

Order genuine Royal Enfield oil-strainer cover O-ring 1570012/B from Under The Hood. Shipping is available across India and to international destinations. Confirm the exact seal position and any separately required cover or strainer before ordering.

Buyer Search Terms

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