Royal Enfield Himalayan 411 & Scram 411 Genuine Engine Oil Pipe No. 1 | 574323/H

Genuine Royal Enfield Himalayan 411 & Scram 411 Engine Oil Pipe No. 1 – 574323/H

Royal Enfield Part Number: 574323/H

574323/H is the genuine Royal Enfield Engine Oil Pipe No. 1 used in the external oil-cooler circuit of the Royal Enfield Himalayan 411 and Royal Enfield Scram 411 LS410 engine platform.

The established Royal Enfield factory description for base part number 574323 is PIPE COMP, ENGINE OIL NO. 1. Buyers may also search for this component as a Himalayan oil cooler pipe, Scram 411 oil cooler line, engine oil hose, external engine oil pipe, oil radiator pipe, oil cooler hose or oil pipe No. 1.

Important: this is one individual oil pipe. It is not a pair of both oil-cooler pipes, not the oil cooler itself, and not Engine Oil Pipe No. 2.

Verified Compatibility

Royal Enfield's Himalayan spare-parts documentation lists 574323 as Engine Oil Pipe No. 1, while current specialist genuine-parts listings identify the same 574323 oil pipe for both Himalayan 411 and Scram 411 applications.

Exact SKU – 574323/H

This listing is for the exact supplied service SKU:

574323/H

Older public Royal Enfield price lists and international genuine-parts catalogues show earlier versions of the same base component, including:

• 574323/B – Pipe Comp, Engine Oil No. 1
• 574323/C – Pipe Comp, Engine Oil No. 1
• 574323/D – Engine Oil Pipe Component / Pipe Comp, Engine Oil No. 1
• 574323/F – Pipe Comp, Engine Oil No. 1
• 574323/H – exact later service SKU supplied for this listing

Revision caution: a later alphabetical suffix should not automatically be treated as a documented supersession. Public catalogues currently expose the older /F version more clearly, while the exact /H SKU is confirmed by later dealer supply. Order the full part number specified by the current VIN-specific Royal Enfield EPC, genuine package or workshop requirement.

What Engine Oil Pipe No. 1 Does

The LS410 engine uses an external oil cooler to help manage engine-oil temperature. The cooler is connected to the engine through two separately serviced oil pipes.

574323/H is Pipe No. 1 in that circuit.

Together with Pipe No. 2, it forms the external oil path between the engine and oil cooler. Because this line carries engine oil, correct sealing and routing are essential.

574323/H vs 574324/F – Do Not Confuse the Two Pipes

The two pipes are not the same part and should not be substituted for one another. They differ in routing / formed geometry and are individually catalogued by Royal Enfield.

If both oil lines are damaged, leaking, corroded or being replaced as preventative maintenance, order 574323/H and 574324/F separately.

This Listing Is for One Pipe – Not a Set

Royal Enfield's exploded oil-cooler catalogue shows:

• 1 × 574323 – Engine Oil Pipe No. 1
• 1 × 574324 – Engine Oil Pipe No. 2
• 1 × 574322 – Oil Cooler Assembly

One quantity of this product = one 574323/H Pipe No. 1.

Do not assume that ordering one 574323/H includes Pipe No. 2.

Related Genuine LS410 Oil-Cooler Parts

None of these surrounding parts are assumed included with 574323/H. Pack contents are limited to what is physically supplied in the genuine Royal Enfield package.

574323/H vs Complete Oil Cooler 574322/G

574323/H is not the oil cooler.

If the cooler core itself is bent, punctured, leaking or internally blocked, the oil cooler assembly must be replaced separately. Current Himalayan 411 / Scram 411 oil-cooler service references use the 574322/G family.

If the cooler is being replaced due to impact damage, inspect both 574323 and 574324 oil lines at the same time.

574323/H vs 888470 Oil Cooler with Pipe Assembly

Some Royal Enfield parts catalogues also show 888470 – Oil Cooler with Pipe Assembly as a larger service assembly.

That does not mean 574323/H is supplied with a complete cooler. RAV—rather, 574323/H remains the separately serviced Pipe No. 1.

Himalayan 411 Application

Royal Enfield retailer documentation specifically lists 574323/F – Pipe Comp, Engine Oil No. 1 in the recommended fast-moving spare list for the Himalayan. The 574323 base number also appears in the Himalayan oil-cooler exploded-parts catalogue.

574323/H is therefore listed here for the Himalayan 411 LS410 platform, subject to exact current SKU / VIN verification where the motorcycle's EPC still displays an earlier suffix.

Scram 411 Application

Current genuine-part sellers and LS410 service references identify 574323 and its /F version for Scram 411 as well as Himalayan 411.

The Scram 411 uses the same LS410 oil-cooler architecture and the 574323 / 574324 oil-pipe family.

Not for Himalayan 450

574323/H is not listed for Himalayan 450.

Himalayan 450 uses the newer Sherpa 450 liquid-cooled engine architecture and a different lubrication / cooling system. Do not order LS410 oil pipes based on the Himalayan model name alone.

Not for Guerrilla 450

Guerrilla 450 also uses the Sherpa 450 platform and should not be matched to the Himalayan 411 / Scram 411 oil-pipe family.

Not for Scram 440

Scram 440 is based on the later LS440 development and should be checked using its own VIN-specific oil-line catalogue. This listing guarantees fitment only for the verified Himalayan 411 and Scram 411 574323 application.

Not for J-Series 350 or 650 Twins

Classic 350 J-series, Bullet 350 J-series, Meteor 350, Hunter 350, Interceptor 650, Continental GT 650, Super Meteor 650, Shotgun 650, Bear 650 and Classic 650 use different engine and oil-system architectures.

574323/H should not be treated as a universal Royal Enfield oil hose.

When Should Engine Oil Pipe No. 1 Be Replaced?

Replacement may be necessary when:

• engine oil is leaking from the pipe body,
• oil is seeping from a union or connection,
• the pipe is bent after a crash or stone impact,
• the formed section is kinked or crushed,
• the outer surface is heavily corroded,
• the end fitting / union face is damaged,
• the pipe has been incorrectly routed or strained,
• the oil cooler is being replaced after impact damage,
• or the workshop / EPC specifies 574323/H.

Oil Leak Diagnosis – Do Not Replace the Pipe Blindly

An apparent oil-pipe leak does not always mean the pipe itself has failed.

Inspect:

• 574323/H pipe body,
• both pipe-end fittings,
• copper sealing washers,
• union bolts,
• oil-cooler O-rings where applicable,
• oil cooler connection faces,
• crankcase connection faces,
• 574324/F Pipe No. 2,
• and the oil cooler itself.

Replacing a pipe without correcting a damaged sealing washer, union bolt or mating face can leave the leak unresolved.

Critical Lubrication-System Part

This component carries engine oil. A leak or incorrectly installed oil line can reduce engine oil level and compromise lubrication.

After any repair to the oil-cooler circuit:

• verify engine oil level,
• check every connection for leakage,
• run the engine and inspect at idle,
• recheck after the engine reaches operating temperature,
• and inspect again after the first road test.

Do not ride the motorcycle if an oil leak remains.

Installation Guidance

• Confirm the exact required pipe is No. 1 / 574323/H, not 574324/F No. 2.
• Allow the engine to cool before working around the oil circuit.
• Drain / control engine oil as required by the Royal Enfield workshop procedure.
• Clean the surrounding area before opening oil connections to prevent contamination entering the lubrication system.
• Inspect the mating faces and union hardware.
• Use new sealing washers / O-rings where the workshop procedure requires renewal.
• Route the new pipe exactly as the original without twisting, forcing or placing it under tension.
• Keep the pipe clear of hot exhaust components, moving parts and sharp edges.
• Use the correct Royal Enfield torque values for union bolts and associated hardware.
• Refill / correct engine oil level after installation.
• Start the engine and inspect carefully for leaks before road use.

Professional installation is strongly recommended because an incorrectly sealed engine-oil pipe can cause oil loss and engine damage.

Do Not Reuse Damaged Sealing Hardware

If a copper washer, union bolt or O-ring is damaged, flattened incorrectly, scored or leaking, replace it with the correct genuine service component.

Do not compensate for damaged sealing hardware by excessively tightening the union bolt. Over-tightening can damage the fitting, thread or mating component.

Part Details

What You Receive

• 1 x Genuine Royal Enfield Engine Oil Pipe No. 1
• Part Number: 574323/H

Not automatically included: Pipe No. 2, oil cooler, union bolts, copper washers, O-rings, engine oil, cooler guard or any additional mounting hardware unless physically supplied in the genuine sealed package.

Before Ordering

Please verify all of the following:

1. Your motorcycle is a Royal Enfield Himalayan 411 or Scram 411.
2. You need Engine Oil Pipe No. 1, not Pipe No. 2.
3. The required base part is 574323.
4. Your current EPC / dealer supply specifies 574323/H or confirms it as the correct replacement for your VIN.
5. The oil cooler, companion pipe and sealing hardware have also been inspected for the cause of leakage.

Frequently Asked Questions

Q. What is Royal Enfield 574323/H?
A. It is the genuine Royal Enfield Engine Oil Pipe No. 1 for the external oil-cooler circuit on the Himalayan 411 and Scram 411 LS410 platform.

Q. Does 574323/H fit Himalayan 411?
A. Yes. The 574323 base part is directly documented in Himalayan oil-cooler parts references. Earlier public documentation commonly shows 574323/F; verify /H against the current VIN-specific EPC when replacing an older suffix.

Q. Does it fit Scram 411?
A. Yes. Genuine-part sellers and LS410 service references list 574323/F for Scram 411 as well as Himalayan 411; 574323/H is the exact later supplied SKU used for this listing.

Q. Is this Pipe No. 1 or Pipe No. 2?
A. Pipe No. 1. Pipe No. 2 is separately catalogued as 574324/F.

Q. Do I get both oil cooler pipes?
A. No. One quantity of this listing contains one 574323/H Engine Oil Pipe No. 1.

Q. What is the second pipe number?
A. 574324/F is Engine Oil Pipe No. 2.

Q. Is the oil cooler included?
A. No. The oil cooler is separately serviced under the 574322 family, with 574322/G used in current Himalayan 411 / Scram 411 service applications.

Q. Are copper washers and union bolts included?
A. Do not assume so. 574325/B copper washers and 574327/B union bolts are separately catalogued components unless physically supplied in the package.

Q. Is 574323/H the same as 574323/F?
A. They share the same 574323 Engine Oil Pipe No. 1 base family. Public catalogues clearly document /F, while later dealer supply confirms /H. This listing does not claim a formal /F → /H supersession without explicit Royal Enfield documentation; confirm against the current VIN EPC.

Q. Does it fit Himalayan 450?
A. No. Himalayan 450 uses the Sherpa 450 engine and a different cooling / lubrication architecture.

Q. Does it fit Guerrilla 450?
A. No fitment is claimed. Guerrilla 450 uses the Sherpa 450 platform.

Q. Does it fit Scram 440?
A. This listing guarantees only the verified Himalayan 411 / Scram 411 application. Check the Scram 440 VIN-specific EPC separately.

Q. My bike is leaking near the oil pipe. Do I definitely need the pipe?
A. Not necessarily. A leak can come from the pipe, sealing washer, union bolt, O-ring, cooler or mating surface. Diagnose the complete connection before ordering.

Q. Can I keep riding with a small leak?
A. An engine-oil leak should be corrected before normal road use. Loss of oil can compromise engine lubrication.

Q. Should the seals be changed with the pipe?
A. Inspect all sealing washers and O-rings. Replace any seal specified as single-use by the service procedure or showing damage, deformation or leakage.

Buyer Search Terms

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