Riginal quality timing guide rail, part number 9481 0502 312, suitable for Porsche 3.6T/4.8T/4.8 engines

This timing chain guide rail adopts original equivalent production standards, OEM part number 948 105 02 312. It is a core timing system replacement part exclusively matched for Porsche M46/48 series 3.6T, 4.8 naturally aspirated and 4.8T twin-turbo engines, widely used in Cayenne, Panamera, Cayman, 970, 958 platform models. We support one-stop procurement of full timing kits including guide rails, tensioners, timing chains and sprockets for Porsche large-displacement engines.
All Core Selling Points & Benefits
1. Original Equivalent Raw Material, Ultra Wear Resistance & High Temperature Resistance
The guide body is made of reinforced high-strength PA66 glass fiber composite material same as OEM standard, mixed with anti-friction carbon powder. It maintains stable hardness and toughness under long-term 120℃~160℃ engine oil high-temperature environment, will not soften, crack or deform.
Benefit: Avoid premature wear of the sliding surface which leads to timing chain jump tooth, eliminate risk of engine valve collision and cylinder scrapping caused by damaged guide rail. Extend the service life of the whole timing system greatly.
2. Precision CNC Molding, 100% OEM Size Matching
Every sliding groove, mounting hole, limit buckle and radian are produced by 1:1 original mold and high-precision CNC finishing. All assembly dimensions fully consistent with factory parts.
Benefit: Direct plug-and-play replacement without grinding, cutting or modification during engine overhaul. Perfect fit timing chain track, no chain deviation, shaking or abnormal friction noise after installation, reduce repairman installation difficulty and labor time cost.
3. Self-Lubricating Sliding Surface, Reduce Chain Wear & Fuel Consumption
Built-in uniform oil storage micro grooves on the contact surface, which continuously absorb engine oil to form a permanent lubricating film between chain and guide rail. Effectively lower metal-to-metal friction coefficient.
Benefit: Cut abnormal mechanical noise from timing chamber during cold start and high RPM driving; slow down timing chain elongation, save your clients frequent maintenance cycles, reduce long-term vehicle operation cost.
4. Strong Anti-Corrosion & Oil Immersion Stability
The composite material formula is specially optimized for long-term immersion in high-temperature motor oil, anti-oxidation, anti-oil corrosion, will not swell or embrittle after years of soaking in engine oil.
Benefit: No hidden danger of guide rail fracture after long vehicle mileage, completely solve common Porsche 4.8 series factory defects of brittle aging timing guide rails. Greatly lower your product return rate and after-sales complaint rate.
5. Universal Compatibility for Porsche 3.6T / 4.8 NA / 4.8T Turbo
Single part number covers mainstream M48 engine variants: 3.6 twin-turbo, 4.8 naturally aspirated, 4.8 twin-turbo, fit Cayenne 958, Panamera 970 and related performance models.
Benefit: Simplify your inventory layout, one SKU covers multiple hot-selling Porsche large-displacement models, reduce stock quantity and capital occupation, improve warehouse turnover efficiency.
6. Complete Supporting Timing Kit Matching, Support One-Stop Procurement
We supply full set timing system accessories matching 94810502312 guide rail: timing chain, hydraulic tensioner, upper/lower guide rails, sprockets, sealing gaskets and installation bolts. All parts follow unified original quality standard.
Benefit: Only cooperate with one supplier for Porsche engine overhaul parts, save communication costs with multiple manufacturers; mixed batch combined shipment reduces international logistics and customs clearance fees; unified 12-month global warranty, centralized after-sales processing without multi-supplier claim negotiation.
7. Strict Factory Inspection & Stable Batch Quality
Every finished guide rail passes three strict tests: high temperature aging test, friction wear cycle test and dimensional tolerance inspection before delivery. No defective products mixed in bulk orders.
Benefit: Consistent product quality between batches, no sudden quality fluctuation for your wholesale business; build stable trust with local repair shops and Porsche modification stores, enhance your market competitiveness.
8. Competitive Wholesale Price with Volume Discount
Factory direct supply without middlemen markup, extra preferential unit price when purchasing full timing kits together with guide rails.
Benefit: Gain obvious price advantage in local aftermarket compared with competitors supplying single scattered parts, raise your gross profit margin on Porsche overhaul spare parts.
9. Sufficient Spot Inventory & Flexible MOQ
Large stock of 94810502312 timing guide rails ready for immediate shipment. Support small trial orders for cross-border e-commerce sellers and bulk wholesale for regional auto parts distributors.
Benefit: No long waiting cycle for customized production, fast delivery to meet urgent repair order demands; support drop-shipping service for Amazon, eBay and AliExpress stores.
Cross Reference OEM Number
948 105 02 312 / 94810502312
Compatible Porsche Models with M48 Engine
Porsche Cayenne 958 3.6T / 4.8 / 4.8 Turbo
Porsche Panamera 970 3.6T / 4.8 NA / 4.8 Turbo
Porsche Cayman & related models equipped with M48 4.8 series engines
Serious Engine Faults This Guide Rail Can Prevent
Timing chain jump teeth, valve collision, complete engine scrapping
Loud rattling noise inside timing chamber during cold start and acceleration
Abnormal elongation of timing chain leading to fault code alarm
Engine power drop, unstable idle speed and increased fuel consumption
Sudden fracture of aging original guide rail causing sudden vehicle stall