Bajaj DH121138 Carburetor Assembly – OEM for Pulsar 150 UG3/UG4 DTS-i

Restore precise fuel delivery on your Pulsar 150 UG3/UG4 DTS‑i with the Bajaj DH121138 Carburetor Assembly—a factory-specified, genuine OEM unit. Designed for the precise air–fuel mixture control essential to smooth ignition and consistent throttle response, it ensures reliable performance across urban commutes and spirited highway rides.

Built from high-grade aluminum, this carburetor assembly meets Bajaj’s quality standards and is pre-calibrated for direct fitment—no modifications required. Perfect for replacement, maintenance, or restoring original factory performance.

Note: This part is specified for Pulsar 150 UG3 and UG4 DTS‑i models only. Always verify your bike’s model before purchasing to ensure compatibility.

Bullet-Point Features

• OEM Bajaj Part (DH121138) – precise replacement, not aftermarket.

• Compatible with Pulsar 150 UG3/UG4 DTS‑i – confirmed by multiple verified sources.

• High-Grade Aluminum Construction – durable, lightweight, heat-resistant.

• Factory-Calibrated & Plug-and-Play – direct OEM fit with proper fuel metering.

• Proven Performance – restores original throttle response and fuel economy.

FAQs 

Q1: Is DH121138 compatible with Pulsar 150 UG5 or Avenger models?
❌ No, this carburetor is officially listed only for Pulsar 150 UG3 and UG4 DTS-i. UG5 and other models use different carburetor part numbers.

Q2: What are the symptoms of a failing carburetor?
✅ Poor mileage, difficulty starting, rough idling, weak pickup, and engine misfiring are common signs that your carburetor needs replacement.

Q3: Is this a genuine Bajaj spare part?
✅ Yes—DH121138 is an OEM-certified Bajaj carburetor, not a local aftermarket copy.

Q4: Do I need to tune the carburetor after installation?
✅ No. The DH121138 comes factory calibrated for Pulsar UG3/UG4 engines. Just install and ride.

Q5: How long does this carburetor last?
✅ With proper maintenance, an OEM carb like DH121138 can easily last 40,000–50,000 km or more.