Spark plugs — options, prices, reliability

Tags: #spark-plugs · #torch · #part-number · #oem

Overview of spark plugs for the FAW Besturn X80 (engine CA4GD1): the factory plug, aftermarket options, prices, service life, counterfeits and fitting. The factory plug is Torch QH6RTIP-13 (OEM number 370701037K). Detailed topics have their own cards:

• Spark plugs — factory spec and gap disputes — gap-code convention and heat-rating direction, and the unresolved gap figures (0.6, 0.7-0.8, 0.9, 1.0-1.3 mm and 1.1 mm depending on the source)
• Spark plugs — Torch, Miles and Ford cross-refs — Torch QH5RIU-13 / QH6RIU-11, Miles ALSP067, Ford cross-reference numbers, RU-market prices and where they were bought
• Spark plugs — NGK, Denso and budget options — NGK, Denso (TV16TT, ITV16TT/ITV20TT), IXEH22TT, domestic and standard non-iridium plugs, with owner verdicts
• Spark plugs — lifespan and wear symptoms — claimed versus real service life, and symptoms linked to worn or fouled plugs (jerks, fuel consumption, power changes)
• Spark plugs — counterfeits and authenticity — counterfeit failure cases, how to tell a genuine Torch (brazed joint, RTIP vs RIU) and NGK 3811 fakes
• Spark plugs — installation, torque and tools — torque limit (18 kgf), socket sizes, thread size, and hard-to-remove factory plugs
• OEM spark plug specifications
• Torch spark plugs — codes, listings, gap rules

Factory spec (Torch QH6RTIP-13). Factory-installed plugs are Torch QH6RTIP-13: iridium, 1.3mm gap, pointed electrode. Approved alternatives: QH5RIU-13 (heat/caloric number 5, 1.3mm gap) or QH6RIU-11 (caloric number 6, 1.1mm gap). Critical fitment note: FAW plugs seat on a conical (tapered) seat WITHOUT a sealing washer — any plug fitted with a washer ring will not seat correctly. Factory plugs are reported to last roughly 60,000 km; iridium upgrades roughly 100,000 km. The pointed electrode design is said to improve ignition by concentrating the spark on a smaller area. One caveat noted: pre-2019 factory plugs may have shipped with rounded (not pointed) electrodes; all recent stock is iridium with the pointed design^{123456789101112131415}. Conflict: some owners report receiving non-iridium plugs from the factory; community consensus nonetheless is that modern X80s ship with the iridium Torch QH6RTIP-13.

OEM part number confirmed — 370701037K (Torch). The factory-installed spark plug is confirmed as Torch brand, part number 370701037K. FAW sources these Torch plugs from original supply, but the exact OEM-numbered plug is hard to find at retail — buying by part number carries an estimated 90% chance of receiving a Chinese counterfeit. Genuine Torch plugs have a visible brazed joint at the electrode; counterfeits typically lack this construction detail, which is a practical way to spot fakes^{1617181920212223242526}.

Media

Technical documentation on iridium spark plug benefits: pointed electrode concentrates charge, fixed gap maintains consistency, longer life

Technical documentation on iridium spark plug benefits (continued)

Technical documentation on iridium spark plug benefits (continued)

Related pages

• Torch spark plugs — codes, listings, gap rules
• Spark plugs — factory spec and gap disputes
• Spark plugs — NGK, Denso and budget options
• Spark plugs — Torch, Miles and Ford cross-refs
• Spark plug specifications and cross-references

Sources

This page is compiled from 26 community messages. Every fact carries a numbered reference to its original author and message.

Last updated: 2026-10-29