Volvo D11, D13 & Mack MP7, MP8 HE400VG Turbo Actuator | Alliant Power AP91005 Remanufactured (Holset 4034114)
This is the Alliant Power AP91005, an electronic actuator for the Holset variable geometry turbocharger on Volvo D11 and D13 and Mack MP7 and MP8 engines, remanufactured by Alliant Power. Turbo catalogs call these engines MD11 and MD13. Alliant Power lists it as the replacement for the Holset 4034114 actuator, and catalogs cross that actuator to Volvo and Mack numbers 85013730, 85013731, 21754439 and 21517180. Alliant Power lists it for EPA07 and EPA10 engines. It is the actuator only. The turbocharger is not included. A refundable core applies.
The actuator moves the nozzle inside the turbo. Low boost and turbo actuator fault codes are the usual reasons to replace it. Check that the turbo’s nozzle moves freely through its full travel before you fit the actuator. Volvo and Mack used more than one Holset actuator on these engines, so match the number on your old actuator before you order.
Confirm Fitment Before You Order
Volvo and Mack used more than one Holset actuator on these engines. This one replaces Holset 4034114 and Volvo / Mack 85013730, 85013731, 21754439 and 21517180. A second Holset actuator, 4034111 (Volvo / Mack 85003308, 85109211 and 85140701), is cataloged under its own numbers. Send us the number on your old actuator, the number on the turbo tag and your engine serial number or VIN before you order, and we will confirm the match. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | AP91005 |
| Brand | Alliant Power |
| Condition | Remanufactured |
| Warranty | Alliant Power 24-month, unlimited-mileage warranty. |
| Type | Electronic actuator for a variable geometry turbocharger |
| Engines | Volvo D11 and D13 (MD11, MD13), Mack MP7 and MP8 |
| Turbo family | Holset HE400VG and HE500VG series |
| Emissions level | EPA07 and EPA10 (Alliant Power’s listing) |
| Replaces Holset | 4034114 (new version 4034114H, Holset remanufactured version 4034114HX) |
| Replaces Volvo / Mack | 85013730, 85013731, 21754439, 21517180, 85003746 |
| Remanufactured by | Alliant Power |
| Supplied as | Actuator only, turbocharger not included |
| Core charge | Refundable in full when we receive your rebuildable core |
| Shipping weight | 5 lb |
Fits / Applications
- Volvo D11 and D13 (MD11, MD13) with the Holset HE400VG or HE500VG series variable geometry turbocharger
- Mack MP7 and MP8 with the same Holset turbo family
- Two catalogs also list this actuator family for the Volvo D16 and D12. Confirm those by the number on your old actuator.
- Alliant Power lists it for EPA07 and EPA10 engines
- Replaces Holset 4034114 and Volvo / Mack 85013730, 85013731, 21754439 and 21517180
- Match by the number on the old actuator and the turbo tag
Check that the turbo’s nozzle moves freely through its full travel before you fit the actuator, and check the harness and connector. Sellers of this actuator family say it may need to be paired or calibrated to the turbo with service software after fitting, so plan for that and follow the Volvo or Mack service procedure.
Part Numbers & Cross Reference
Alliant Power AP91005 · Holset 4034114 · Holset new version 4034114H · Holset remanufactured version 4034114HX · Volvo / Mack 85013730 · Volvo / Mack 85013731 · Volvo / Mack 21754439 · Volvo / Mack 21517180 · Volvo / Mack 85003746 · Interchange 28084716 · Interchange 28209382 · Holset / Cummins 5359093 · Holset / Cummins 3789659 · Holset / Cummins 4032170 · Holset / Cummins 3783399 · Holset / Cummins 3787586 · Holset / Cummins 3787591 · Holset / Cummins 3780595 · Holset / Cummins 4047112 · Holset / Cummins 2837207 · Dorman 599-5002
Cross-reference numbers can change with engine serial, build year and emissions tier, so treat this list as a starting point. Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.
Frequently Asked Questions
Will the AP91005 fit my Volvo or Mack?
It is listed for Volvo D11 and D13 and Mack MP7 and MP8 engines with the Holset HE400VG or HE500VG series variable geometry turbo. More than one Holset actuator was used on these engines, so call 530-668-0818 with the number on your old actuator and your engine serial number or VIN.
What numbers does the AP91005 replace?
Holset 4034114 and Volvo / Mack 85013730, 85013731, 21754439 and 21517180. Catalogs also cross it to Holset 5359093, 3789659 and 4032170.
My old actuator says 4034111 or 85003308. Is this the right part?
Catalogs list 4034111 (Volvo / Mack 85003308, 85109211 and 85140701) as a separate Holset actuator with its own numbers. Send us the number on your actuator and the turbo tag and we will find the right one.
Is the AP91005 new or remanufactured, and is there a core?
It is remanufactured by Alliant Power. A refundable core applies, and it is refunded when we receive your old actuator.
Why Buy From Valley Fuel Injection
We are a diesel fuel-injection and turbocharger shop in Woodland, CA, rebuilding pumps, injectors and turbos on our own benches since 1993, not a drop-ship storefront. When you call, you talk to the people who test these units. We verify fitment against your engine serial, VIN or build date before anything ships, so the right part arrives the first time.
UPS to all 50 states, including Alaska and Hawaii. Your rate shows at checkout. A refundable core deposit is added at checkout and refunded in full when we receive your rebuildable core. Questions on fitment? Call 530-668-0818.
Pricing covers the unit itself. Any applicable sales tax and the refundable core charge are additional; shipping is calculated at checkout. Buying tax-exempt? Qualifying diesel repair shops, fleets, farms, and agricultural operations can purchase tax-free. Set up tax-exempt purchasing once and every qualifying order is tax-free going forward.
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