Skip to main content

DAF OEM numbers, fault codes and defect symptoms in one searchable index.

Use this page to match duplicate OE/OEM numbers from workshop reports, see which component family they belong to, and understand the common symptoms before you request a regeneration quote.

22
component families
238
searchable OEM numbers
86
fault codes indexed
21
duplicate/ambiguous OEM groups
Send part photos

Showing 22 component families.

Canonical pages for duplicated reports.

Each card groups repeated reports into one reusable data record. Exact fitment should still be confirmed by VIN, installed connector and part photos.

Early HE400VG variable-geometry turbo used on DAF XF/CF MX engines. The repeated reports point to hot-side vane binding, actuator travel errors, oil-coked bearings and underboost complaints.

Common symptoms
  • Loss of power uphill or under trailer load
  • Limp mode after sustained hot operation
  • Turbo whistle, siren noise or squeal above 1500 rpm

Later HE400VG turbo group for DAF XF/CF MX-13 and selected MX-11 Euro 6 applications. Main search intent is OEM replacement matching plus diagnosis of underboost, VGT actuator errors and bearing wear.

Common symptoms
  • Loss of boost above 1200 rpm
  • Slow boost build after a gear change
  • Turbo hunting or surging between 1100 and 1500 rpm

HE500VG turbo group for high-output DAF MX-13 Euro 6 trucks. The reports repeatedly connect these OEM numbers with VGT actuator mismatch, soot-bound vanes, bearing wear and smoke complaints.

Common symptoms
  • Significant power loss above 1100 rpm
  • Dead pedal feel off the line with poor boost build
  • Whining, screaming or siren-type turbo noise under load

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.

Common 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

Main MX-13 Euro 6 EGR valve interchange group. It combines repeated reports for 2339622 and linked replacements where symptoms are soot blocking, position errors, failed regens and derate.

Common symptoms
  • Power derate or limp mode
  • EGR valve stuck open or stuck closed in diagnostic software
  • Rough idle, hunting or surging at cruise

Pierburg-supplied MX-11 Euro 6 EGR valve group. The main user intent is matching OEM numbers and understanding repeated failure symptoms from soot, actuator wear and DPF regeneration problems.

Common symptoms
  • Power loss under load
  • Black smoke and EGR estimated rate too high
  • Aborted DPF regeneration

MX-11 EGR valve report group using OEM 2104977 and related numbers. These same numbers also appear in a BPV report group, so exact OEM lookup should show both possible matches and request VIN/photo verification.

Common symptoms
  • Limp mode after cold start
  • EGR not reaching commanded position
  • DPF differential pressure high

Back pressure valve report group for MX-11/MX-13 Euro 6 applications. The same OEM number appears in turbo reports too, so this page deliberately exposes the ambiguity and asks users to verify by VIN or photo.

Common symptoms
  • Distinct lack of power under load
  • Severe hesitation during acceleration
  • Engine protection or torque limitation active
Back pressure valve

2104977 · BPV valve 2104977

6 refs

MX-13 Euro 6 BPV valve group from the repeated reports. Searchers usually need to match an OE number and understand weak engine-brake, chuffing exhaust and derate symptoms.

Common symptoms
  • Engine brake suddenly weak or completely dead on descents
  • Slow turbo spool and flat take-off after throttle lift
  • Harsh barking or chuffing from the exhaust when braking with engine brake

HY35W wastegated turbo group for DAF LF and CF with Cummins ISBe 5.9L engines. Failure patterns are mainly shaft play, oil starvation and sticky wastegates.

Common symptoms
  • Lazy boost rise and smoke between shifts
  • Loss of power and slow turbo spool
  • Excessive black smoke under acceleration
Fault codes

HX35W turbo group for DAF LF with Cummins ISBe6 6.7L engines. The repeated reports focus on bearing and seal failure, oil in charge pipes and underboost on motorway grades.

Common symptoms
  • Black smoke under throttle from underboost
  • Loss of power on motorway grades
  • Whistling or screaming noise that builds with revs
Fuel / brake / bypass valve

B368 · B368 bypass valve

4 refs

B368 bypass valve data is reported in several ways: fuel bypass, wastegate/bypass valve and EGR cooler bypass actuator. The lookup page should therefore make the ambiguity visible and route users by fault code and symptom.

Common symptoms
  • Reduced motor power and lazy spool-up
  • Truck smokes more on hard acceleration
  • Boost comes and goes instead of building cleanly
Fuel / brake / bypass valve

B131 · B131 pump unit valve cyl 1

10 refs

Cylinder 1 unit pump solenoid group for DAF DMCI/EUP systems. Intended for searches by B131, P0201, P0261, P0262 and related pump-unit assembly numbers.

Common symptoms
  • Engine misfire on cylinder 1
  • Rough idle and vibration
  • Engine refuses to start or stalls immediately
Fuel / brake / bypass valve

B132 · B132 pump unit valve cyl 2

7 refs

Cylinder 2 pump unit solenoid group for DAF DMCI/EUP systems. Structured for OEM and P-code lookup around B132, P0202, P0264, P0265 and P0266.

Common symptoms
  • Cylinder 2 misfire and vibration at idle
  • Torque contribution from cylinder 2 too low
  • Engine cuts out at higher RPM
Fuel / brake / bypass valve

B134 · B134 pump unit valve cyl 4

6 refs

Cylinder 4 unit pump solenoid group for DAF DMCI/EUP systems. Focuses on cylinder 4 misfire, P0204/P0270/P0271 fault code searches and high-mileage solenoid failures.

Common symptoms
  • Cylinder 4 diesel knock under acceleration
  • Jerky pull from 900 to 1200 rpm
  • Cylinder 4 contribution too low

Best way to make this useful for mechanics and search engines.

1. One canonical page per component family

Keep duplicate reports merged. Put all OE/OEM numbers in one visible table instead of scattering the same text across many thin pages.

2. OEM lookup routes for users

Each number gets a lookup URL. If the number is duplicated, the user sees all possible matches and a VIN/photo verification prompt.

3. Symptoms before sales copy

The first screen after the OEM number should show defect symptoms, P-codes, fitment and diagnostic tips, then the quote CTA.

Ready for a quote?

Reply by email or WhatsApp. No deposit, no obligation.

Direct references from fleet operators in your country — available on request.

Save 63% per valve

€850 vs €2,300 new