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Genuine Husqvarna Carburetor Mounting Flange - 503 71 27-01
Ensure a leak-free intake system with the Genuine Husqvarna 503712701 Carburetor Mounting Flange. This factory-original intake component is vital for maintaining the stable idle and high-speed tuning of your saw.
Vacuum-Tight Performance
Air leaks between the carburetor and cylinder can cause "leaning out," which leads to engine racing and eventual piston seizure. This OEM flange is made from high-temperature elastomers that won't warp or harden under the heat of a 70cc+ engine.
Model Compatibility:
| Husqvarna |
362 XP, 362
365 SPECIAL, 365
371K, 375K
371 XP, 372 XP |
| Jonsered |
2063, 2065, 2071
2163, 2165, 2171
CS2163, CS2165, CS2171 |
⚠️ Fitment Note: Not for X-TORQ
This flange is designed for Original/EPA engines only.
This part will NOT fit newer X-TORQ configurations. Please verify your cylinder type before ordering to ensure a vacuum-tight seal and prevent engine damage.
📄 All Technical Resources (PDF):
🛠️ Mechanic's Tip:
If your saw is erratic at idle, spray a tiny amount of carb cleaner near the flange while running. If the RPMs change, your flange is leaking. Replacing this $15-20 part can save you from a $200 piston and cylinder rebuild.
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Fits models:
- Husqvarna 362 XP, 362, 365 SPECIAL, 365, 371 XP, 371K, 372XP, 375K
Jonsered 2063, 2065, 2071, 2163, 2165, 2171, CS2163, CS2165, CS2171
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