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Cummins Exhaust Outlet Connection Gasket 5271392 – OEM Quality Replacement for ISX15/QSX15 Engines
The Cummins 5271392 Exhaust Outlet Connection Gasket is a high-temperature multi-layer steel seal for ISX15 and QSX15 inline-6 diesel engines, ensuring leak-free turbo-to-exhaust connections, reduced backpressure, and emissions compliance in heavy-duty trucks like Freightliner Cascadia and Peterbilt 389, with cross-references to 3684338 and 4965129.
Product Details
Key Parameters
| Parameter | Details |
|---|---|
| OE Number | 5271392 |
| Compatible Engine Models | Cummins ISX15, QSX15 (Tier 4/Stage IV) |
| Compatible Vehicle Models | Freightliner Cascadia, Peterbilt 389, Kenworth T680, International HX |
| Material | Multi-Layer Steel (MLS) with Graphite Coating |
| Dimensions | OD: 120 mm; ID: 100 mm; Thickness: 2 mm (approx.) |
| Warranty | 1-Year Volgen Power Standard |
| MOQ | 1 piece |
| Net Weight | 0.05 kg |
Cross Reference
Equivalent Part Numbers:
- 5271392
- 3684338
- 4965129
- 4353954
- Aftermarket Ref: Automann 561.5271392
Features & Advantages
- Multi-Layer Steel Construction: Engineered for heavy-load turbo operation, providing superior sealing under 900°C+ exhaust temps and high pressure.
- Graphite Coating: Precision-machined with 0.01mm tolerance for perfect flange fit, reducing leaks and backpressure in EGR systems.
- OEM Balanced Design: Machined to Cummins specs for seamless integration, minimizing vibration and noise in Tier 4 engines.
- Versatile Application: Suitable for construction, mining, and long-haul trucking, ensuring reliable performance in ISX15/QSX15 fleets.
Common Faults & Replacement Signals
- Exhaust Leaks: Cracked or blown gaskets cause whistling or black soot at joints—replace if boost pressure drops >5 psi.
- Power Loss: Degraded seals lead to turbo inefficiency; check for increased EGT or reduced MPG.
- Emissions Faults: Leaks trigger CEL or DPF issues; monitor for fault codes like SPN 3251.
- Flange Corrosion: High-heat cycles without timely replacement cause warping; inspect during 100,000-mile service.
Installation Notes
- Preparation: Cool exhaust system and remove old gasket; clean flanges with a wire brush (ensure flatness <0.05mm).
- Alignment: Install new gasket dry (no sealant), torque bolts to 25 Nm in cross pattern (consult manual).
- Sealing: Use anti-seize on bolts; ensure the turbo outlet aligns perfectly.
- Testing: Run engine, check for leaks with smoke machine; monitor boost for 10 minutes.
- Pro Tip: Replace in pairs (inlet/outlet) and use a calibrated torque wrench to avoid warping; inspect the turbo housing for cracks.
Packaging & Shipping
- Packaging: Sealed in an anti-corrosion bag with a protective sleeve, boxed for safe transit.
- Delivery: Worldwide free shipping on orders over $50; 3-7 days to most locations from the China warehouse.
Ready to Order? Get a Quote Today! Website: www.volgenpower.com Email: [email protected] 24/7 Support: +86 18827435225
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