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4043755 HX55W Turbocharger Replacement for Cummins ISM Engines

Aftermarket replacement 4043755 HX55W turbocharger for Cummins ISM engines. Reference application includes Orion V and MCI D4500/J4500. Verify part number and OEM reference 4043756 before ordering.

Orders without stock ship approximately 60 days after ordering. Estimated ship date if ordered today: .

Type Turbocharger On backorder — orders accepted Part # 4043755 Models HX55W Weight 28.00 kg Packing 34*34*38
Cross Reference 4043756
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12-Month Warranty Worldwide shipping excluding Canada and China. OEM-Grade Quality

This 4043755 HX55W turbocharger is an aftermarket replacement designed for Cummins ISM engines in Orion V and MCI D4500/J4500 applications. Verify part number, engine code, and OEM reference 4043756 before ordering to ensure correct fitment for your transit bus or motorcoach fleet.

Key Specifications

  • Part Number: 4043755
  • Product Type: Turbocharger
  • Turbo Model: HX55W
  • OEM Reference: 4043756
  • Packing Dimensions: 34*34*38 cm
  • Gross Weight: 28 kg
  • Application Clues: Cummins ISM engines in Orion V, MCI D4500, and J4500 vehicles
  • Image Availability: No product image currently available

Use these factual fields to verify the 4043755 HX55W turbocharger against your service records. Confirm the OEM reference 4043756 and physical dimensions match your existing unit before proceeding with a B2B order.

Application & Compatibility

Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:

  • Orion Bus > Orion V > Orion V Transit Bus > CUMMINS ISM
  • Motor Coach Industries > D4500 > D4500 Motorcoach > Commuter Coach > CUMMINS ISM
  • Motor Coach Industries > J4500 > J4500 Motorcoach > CUMMINS ISM

This HX55W turbocharger is listed for Cummins ISM engines in transit bus and motorcoach applications. Reference application clues include Orion V Transit Bus, MCI D4500 Commuter Coach, and MCI J4500 Motorcoach. Use these paths to verify fitment against your specific vehicle configuration and service records.

  • Orion Bus > Orion V > Orion V Transit Bus > CUMMINS ISM
  • Motor Coach Industries > D4500 > D4500 Motorcoach > Commuter Coach > CUMMINS ISM
  • Motor Coach Industries > J4500 > J4500 Motorcoach > CUMMINS ISM

Confirm that part number 4043755 and OEM reference 4043756 match your existing unit. Verify engine code, production year, and cooling system details before placing a B2B order.

Technical Notes

The HX55W turbocharger is a water-cooled unit designed for high-output diesel applications. Verify that the water cooling ports on your existing unit match the 4043755 replacement before installation. Confirm the wastegate operating pressure and actuator related hardware alignment against Cummins ISM service specifications. Inspect the intake and exhaust systems for foreign object damage (FOD) such as metal shavings or coolant residue. Clean the system thoroughly if FOD is present to protect the new turbocharger. Ensure the cooling system is flushed and free of blockages to maintain stable operation.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and fleet parts distributors with volume pricing and worldwide shipping for the 4043755 HX55W turbocharger. Our technical fitment team assists in verifying part number 4043755, OEM reference 4043756, and Cummins ISM engine applications for Orion V and MCI D4500/J4500 vehicles. Contact us to confirm cooling port alignment and wastegate specifications before placing a bulk order. We provide pre-shipment inspection and fast dispatch to ensure your fleet maintenance schedule stays on track.

Product FAQ

Inspect the intake and exhaust systems for debris, metal shavings, or coolant residue. If FOD is found, clean the entire system to prevent damage to the new turbocharger.

Compare the port locations and sizes on the old unit with the new 4043755 turbocharger. Verify against the Cummins ISM engine diagram for your specific Orion V or MCI vehicle model.

Ensure the wastegate actuator and related hardware are adjusted to the manufacturer's specified pressure for the Cummins ISM engine. Incorrect pressure can affect boost levels and engine performance.

The primary OEM reference number associated with this part is 4043756. Verify this reference against your vehicle's service manual or parts catalog before ordering.

Orion V and other product, brand and model names are the property of their respective owners and are used for reference and application-lookup only. LeadTurbo is not affiliated with or endorsed by Orion V.

Compatibility Verify part number 4043755, engine code Cummins ISM, vehicle application (Orion V, MCI D4500, or J4500), production year, and OEM reference number 4043756 before ordering. Confirm turbo configuration and cooling system details with your technical team.

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