OEM lookup

OEM 1978404

Name: DAF OEM 1978404 lookup
Brand: Holset / DAF
SKU: 1978404

This exact OEM landing page is grouped with 2037560 · VGT actuator 2037560. Use it for number-only searches, then open the full component page for detailed symptoms, fault codes and fitment.

Searched number

1978404

Possible matches

Canonical strategy

Self-canonical OEM lookup page

Matched component families

This is the matched report group.

Actuator VGT / VTG turbo actuator

2037560 · VGT actuator 2037560

Electric VGT actuator used with Holset HE400VG and HE500VG turbochargers on DAF MX Euro 6 engines. It is often blamed for boost faults, but the source reports stress that the turbo vane mechanism must be checked first.

Full page

Defect symptoms

Truck in limp mode with RPM capped around 1300
No boost until the engine is well past 1200 rpm
Turbo hunts or surges instead of building boost smoothly
Actuator clicks but vane lever barely moves
Intermittent limp mode after hot restart

Fault codes

P0045 P0046 P2562 P2563 U1159 P0299

Other numbers in this group

2037560 1978404 1978405 2037562 1881507 2411555 2411556 0312572 10R-0312572 3787573 3787578 3789653 +18 more

Fitment

Trucks and engines linked to OEM 1978404

Reported DAF applications for the matched component group. Use as a starting point and confirm by VIN before ordering.

Truck model	Engine	Years	Power (hp)
XF 106	MX-11 / MX-13 Euro 6	2013-2023	320-530
CF 85	MX-11 / MX-13 Euro 6	2013-2022	320-530
CF 430	MX-11 Euro 6	2017-2023	430
CF 480	MX-13 Euro 6	2017-2023	480
CF 530	MX-13 Euro 6	2017-2023	530

For support teams

How to use this OEM lookup

Start with the exact OEM number, including suffixes such as PE, RN, RX or H.
Check whether the page shows one match or multiple possible matches.
Confirm by VIN, engine family, truck model, connector and physical part photos.
Use symptoms and fault codes to decide whether the part is likely the root cause or only a secondary fault.

Need confirmation?

Send the number with photos

For duplicated reports, a photo of the label, connector side and installed location avoids ordering the wrong BPV, EGR, turbo or solenoid part.

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