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Royal Enfield Genuine Engine Oil Pump Worm Nut (Part No. 144452/A) for Old Model Bullet 350 & 500 (Cast Iron Models) | Official Timing Gear Component

166 inclusive of all taxes

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Keep your classic engine’s lubrication system running perfectly with the Royal Enfield Genuine Oil Pump Worm Nut (Part No. 144452/A). Engineered directly by the manufacturer, this specialized internal engine fastner is a critical component of the timing gear assembly for vintage Royal Enfield old model Cast Iron (CI) engines. It secures the oil pump drive worm gear onto the crankshaft timing spindle, guaranteeing consistent oil circulation across your rocker arms, piston, and crank assembly.

On legacy Cast Iron engines, the oil pump mechanism relies on precise mechanical gear mesh. Over time, high engine torque, vibration, or improper timing assembly torque can strip the threads of the worm nut or wear down its driving face. A slipping or loose worm nut causes immediate drops in oil pressure, leading to catastrophic engine overheating and component failure.

This 100% authentic replacement part is machined from premium-grade steel alloy to match the original factory hardness ratings. It features high-precision internal threads designed to withstand constant rotational stress and high engine temperatures inside the timing chamber, preventing loosening and maintaining absolute timing-side gear alignment.

Key Product Features:

  • 100% Royal Enfield Genuine Spares: Factory-original internal engine component manufactured to the precise thread pitch, structural tolerance, and hardness specifications of Eicher Motors Ltd.

  • Premium Hardened Steel Alloy: Engineered to resist high thermal expansion and rotational shear force within the timing gear case.

  • Flawless Thread Engagement: Precision-cut internal threads ensure a tight, permanent lock onto the crankshaft spindle, preventing timing gear play.

  • Critical Engine Lubrication Component: Restores the direct mechanical drive to your oil pump plungers, securing your vintage motor’s oil feed channels.

Technical Specifications:

  • Brand: Royal Enfield (Genuine Parts & Accessories)

  • Part Number: 144452/A

  • Product Name: WORM NUT

  • Net Quantity: 1 Number

  • Country of Origin: India

Motorcycle Compatibility:

  • Royal Enfield Cast Iron (CI) Old Models: Purpose-built for legacy right-shift and early left-shift models running the classic Cast Iron engine block, including the Bullet Standard 350, Bullet 500, Machismo 350, and early Electra models (prior to UCE platforms).

  • Fitment Warning: This internal gear nut is specific to the legacy Cast Iron crankshaft design. It will not fit modern UCE (Unit Construction Engine) models like the Classic 350, Bullet 350 Twinspark, or the newer J-Series Reborn platforms.

Workshop Installation Tip:

Installing internal timing components requires precise technique. Before threading the new worm nut onto the crankshaft spindle, thoroughly clean the spindle threads with an engine degreaser to remove all traces of old sludge or metal shavings. Always use a calibrated torque wrench to tighten the nut according to factory workshop manuals. Never use an impact gun directly on timing gears, as the sudden hammering force can easily shear the keyways or misalign the crankshaft flywheels!

Return & Replacement Policy

Return & Replacement Policy

General Policy: Please note that a replacement request will only be accepted after our technical team verifies that the claim is eligible according to our terms and conditions. We reserve the right to accept or reject any request that does not meet our quality and safety standards.

Important Notice: We do not offer direct returns or immediate refunds. All requests must first be processed as a Replacement. A refund will only be initiated if the required replacement part is currently out of stock.

1. Replacement Window

  • You may request a replacement within 3 to 5 days of delivery.

  • Requests made after this 5-day window will not be eligible for return or exchange.

2. Eligibility for Replacement

A request is valid only if:

  • The item is in its original packaging and in brand-new condition.

  • The item shows no signs of installation, scratches, or grease.

  • All tags, labels, and accessories are included in the return box.

  • Electronics/Sensors: These items are eligible for replacement only in the case of a verified manufacturing defect.

3. Mandatory Unboxing Video

  • We strictly mandate that customers record a continuous unboxing video while opening the parcel.

  • Claims for “Damage in Transit” or “Missing Parts” will not be processed without a clear, unedited unboxing video.

4. Non-Returnable Items

  • Custom Orders: Parts specifically manufactured or managed on a per-order basis.

  • Handling Damage: Items damaged during a failed installation attempt or due to incorrect handling.

5. Shipping & Reverse Pickup Rules

  • Our Error: Free reverse pickup is provided only if the mistake is on our side (Wrong item sent or Damage in transit).

  • Customer Error: If a replacement is requested due to a customer error (e.g., ordering the wrong model), the customer is responsible for both return and forward shipping charges.

6. Fitment & Compatibility Verification

  • In case of fitment issues, we may request a photo of your motorcycle or scooter to verify the part’s compatibility before processing a replacement.

7. Refund Process

  • Once we receive the returned item, our team will perform a Quality Check.

  • After passing the check, if a replacement is out of stock, your refund will be processed within 1-2 working days to your original payment method.

  • Note: Shipping charges are non-refundable if the return is due to customer error.

8. How to Request a Replacement

  • WhatsApp: +91 95557 98738

  • Email: eazonline01@gmail.com

  • Website: My Account > Orders > Request Return

    Please upload your unboxing video to Google Drive or YouTube and paste the shareable link here. Make sure the link is set to "Anyone with the link can view".
    Please send the high-quality photos and unboxing video of the product to our official WhatsApp: +91 9555798738 . Mention your Order ID in the chat.

Cancellation Policy

1. Order Cancellation Window:

  • You can cancel your order within 4 to 5 hours of placing it.

  • Once the order is processed or the status changes to “Packed/Shipped,” the Cancel button will automatically be disabled.

2. Cancellation After Processing:

  • If you wish to cancel the order after the 5-hour window or after the tracking details have been updated, a Processing Fee will be applicable.

  • This fee covers the cost of packaging material and administrative efforts already spent on your order.

3. Cancellation Before Processing:

  • You can cancel your order free of charge as long as the order status is “Pending”.

  • Once our team starts working on your order and the status changes to “Processing” or “Packed”, the cancellation option will be disabled.

4. How to Cancel:

  • You can cancel directly from the “My Account > Orders” section on our website.

  • If the button is not visible, it means your order has already been processed for shipping.

Weight 0.2 kg
Dimensions 10 × 10 × 10 cm

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Royal Enfield Genuine Engine Oil Pump Worm Nut (Part No. 144452/A) for Old Model Bullet 350 & 500 (Cast Iron Models) | Official Timing Gear ComponentRoyal Enfield Genuine Engine Oil Pump Worm Nut (Part No. 144452/A) for Old Model Bullet 350 & 500 (Cast Iron Models) | Official Timing Gear Component
166 inclusive of all taxes
- +
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