What is the standard factory clearance?

The standard clearance is 0.38 to 0.40mm. Increasing it without permission may burn the ignition coil.

Stitt Extended Barrel Shielded Spark Plug S-R407ll-2

Name: Stitt Extended Barrel Shielded Spark Plug S-R407ll-2
Brand: Shanghai Peili International Trade Co., Ltd.
SKU: 2180625662

Shanghai, ChinaShanghai Peili International Trade Co., Ltd.

US$199.00

5-49 Pieces

US$99.00

50+ Pieces

Product profile

Certification

CCC, COP, ISO9001, CE

Standard Component

Technics

Push

Model NO.

S-R407LL-2

Material

Copper

Type

Piston Ring

Model

S-R407ll-2

Original

Transport Package

Wooden Box

Specification

M18×1.5

Trademark

STITT

Origin

USA

Production Capacity

5000

Key features

Iridium Alloy Electrode: Resistant to high temperatures and gas corrosion, ideal for biogas and coking gas conditions.

Ultra-Long Service Life: Continuous operation for 8000 to 12000 hours, significantly longer than copper core plugs.

High-Temperature Resistance: Insulating ceramics withstand temperatures exceeding 1200 degrees Celsius.

Anti-Carbon Deposition: Multi-claw ground electrode design prevents carbon buildup and pole breakage.

Built-in Damping: High resistance damping prevents ignition interference with unit controllers.

Corrosion Resistant Coating: Optional NP anti-corrosion coating available for high-sulfur gas sources.

Precision Thread Specification: M18x1.5 thread with 27mm hexagonal sides for standard industrial assembly.

Company profile

Shanghai Peili International Trade Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Trading Company CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.24h CertifiedTerms of Payment: T/T CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

About Our Factory & Business Background

AddressNo. 35, Rijing Road, Pudong New Area, Shanghai, China

Number of Employees4

Registered Capital5,000,000 RMB

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsGas Generator, Diesel Engine, Prechamber Spark Plug, Engine Spare Parts, Stitt Spark Plug.

R&D Engineers1 people

Our Industry Experience & Global Business Record

Year of Establishment2014-01-22

Main MarketsDomestic

Number of Foreign Trading Staff3

Overseas Agent/BranchNo

Product Q&A

Q:What is the service life of this spark plug?

It offers an ultra-long service life with a continuous operation cycle of 8000 to 12000 hours.

Q:Is this spark plug suitable for high-sulfur gas environments?

Yes, it is resistant to trace hydrogen sulfide corrosion, and an NP anti-corrosion coating is available for high-sulfur sources.

Q:What is the recommended gap maintenance interval?

Check the gap every 4000 hours; replace directly if it exceeds 0.45mm. Do not polish the electrode.

Q:Can I apply grease on the threads during installation?

No, it is forbidden to apply grease or anti-seize paste as it may cause thread jamming due to high-temperature carbonization.

Q:What engines are compatible with this spark plug?

It fits Weichai R6160 series, domestic 190 series, Shengdong, Jichai units, and integrated natural gas compressor units.

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