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Thumbnail Filmstrip of 1994-1995 7.3L OBS Powerstroke Adrenaline HPOP Pump Stainless Steel Threads DieselSite ADR95SI Images
The DieselSite ADR95SI is the Adrenaline high volume high pressure oil pump for early 1994-1995 Ford 7.3L Powerstroke engines that need the anti-drainback feature. It is built on a reworked factory cast housing with stainless steel thread inserts in the outlet ports, which is what sets it apart from the billet-housing ADRB95.
Worn stock pumps fall behind under load, which shows up as low ICP, long cranking and P1211 codes. The Adrenaline adds oil volume with custom internals and dual ball bearing cartridges in place of bushings, and every pump is flow tested before it ships. Stock trucks feel the difference, and larger injectors gain even more.
- Stainless Steel Thread Inserts: Steel-reinforced outlet threads resist the stripping that plagues worn cast pumps.
- High Volume Output: More oil to the rails for steadier ICP while towing.
- Dual Ball Bearing Cartridges: Replaces the factory bushings for longer service life.
- Flow Tested: Every unit is checked to the same flow spec before shipping.
- Late IPR Compatible: Built to accept the 1996-2003 style IPR valve.
Technical Specifications
- Part Number: ADR95SI
- Manufacturer: DieselSite
- Housing: Remanufactured cast housing with stainless steel outlet thread inserts
- Anti-Drainback: Yes, for engine serial 201680 and earlier
- Injector Support: Stock through large hybrids, not for B-code injectors
- Included: Mounting gasket, 2 outlet fitting O-rings, 3 IPR O-rings
- Core Requirement: A refundable core charge is added at checkout and refunded when your old pump is returned per core terms
- Warranty: 3 years, unlimited miles (DieselSite)
Vehicle Fitment & Technical Installation Notes
- Fitment: 1994-1995 Ford 7.3L Powerstroke and International T444E with engine serial number 201680 and earlier. Engines from serial 201681 on use the non-anti-drainback ADRSI. Remove any aftermarket rail crossover line, since the pump balances the rails internally.
- Installation Tip: The pump ships without an IPR valve or hose fittings, so move those over from your old pump before you send the core back. Replace both outlet fitting O-rings and the IPR O-rings with the new ones in the box.
The DieselSite ADR95SI is the Adrenaline high volume high pressure oil pump for early 1994-1995 Ford 7.3L Powerstroke engines that need the anti-drainback feature. It is built on a reworked factory cast housing with stainless steel thread inserts in the outlet ports, which is what sets it apart from the billet-housing ADRB95.
Worn stock pumps fall behind under load, which shows up as low ICP, long cranking and P1211 codes. The Adrenaline adds oil volume with custom internals and dual ball bearing cartridges in place of bushings, and every pump is flow tested before it ships. Stock trucks feel the difference, and larger injectors gain even more.
Stainless Steel Thread Inserts: Steel-reinforced outlet threads resist the stripping that plagues worn cast pumps.
High Volume Output: More oil to the rails for steadier ICP while towing.
Dual Ball Bearing Cartridges: Replaces the factory bushings for longer service life.
Flow Tested: Every unit is checked to the same flow spec before shipping.
Late IPR Compatible: Built to accept the 1996-2003 style IPR valve.
Technical Specifications
Part Number: ADR95SI
Manufacture[...]
The DieselSite ADR95SI is the Adrenaline high volume high pressure oil pump for early 1994-1995 Ford 7.3L Powerstroke engines that need the anti-drainback feature. It is built on a reworked factory cast housing with stainless steel thread inserts in the outlet ports, which is what sets it apart from the billet-housing ADRB95.
Worn stock pumps fall behind under load, which shows up as low ICP, long cranking and P1211 codes. The Adrenaline adds oil volume with custom internals and dual ball bearing cartridges in place of bushings, and every pump is flow tested before it ships. Stock trucks feel the difference, and larger injectors gain even more.
- Stainless Steel Thread Inserts: Steel-reinforced outlet threads resist the stripping that plagues worn cast pumps.
- High Volume Output: More oil to the rails for steadier ICP while towing.
- Dual Ball Bearing Cartridges: Replaces the factory bushings for longer service life.
- Flow Tested: Every unit is checked to the same flow spec before shipping.
- Late IPR Compatible: Built to accept the 1996-2003 style IPR valve.
Technical Specifications
- Part Number: ADR95SI
- Manufacturer: DieselSite
- Housing: Remanufactured cast housing with stainless steel outlet thread inserts
- Anti-Drainback: Yes, for engine serial 201680 and earlier
- Injector Support: Stock through large hybrids, not for B-code injectors
- Included: Mounting gasket, 2 outlet fitting O-rings, 3 IPR O-rings
- Core Requirement: A refundable core charge is added at checkout and refunded when your old pump is returned per core terms
- Warranty: 3 years, unlimited miles (DieselSite)
Vehicle Fitment & Technical Installation Notes
- Fitment: 1994-1995 Ford 7.3L Powerstroke and International T444E with engine serial number 201680 and earlier. Engines from serial 201681 on use the non-anti-drainback ADRSI. Remove any aftermarket rail crossover line, since the pump balances the rails internally.
- Installation Tip: The pump ships without an IPR valve or hose fittings, so move those over from your old pump before you send the core back. Replace both outlet fitting O-rings and the IPR O-rings with the new ones in the box.
Q
Jack • 01/28/2026, 1:50:11 PM
So my truck is a 95. However at 180k someone put a reman block in it with a reman HPOP. My serial number is stamped 286986 I believe. That means I dont NEED antidrainback? Will it hurt to have it?
A
01/28/2026, 2:42:13 PM
By the serial provided, this would need a 1996-2003 model HPOP. If you install a 94-95 hpop on a 96-03 engine, it will not hurt, no affect on performance.
Q
Jack • 02/08/2026, 7:19:14 PM
Couple weeks ago I asked “ So my truck is a 95. However at 180k someone put a reman block in it with a reman HPOP. My serial number is stamped 286986 I believe. That means I dont NEED antidrainback? Will it hurt to have it?”. Someone responded with “By the serial provided, this would need a 1996-2003 model HPOP. If you install a 94-95 hpop on a 96-03 engine, it will not hurt, no affect on performance“
So I ordered newer one. Turns out they installed older hpop on newer block. Yes, both the block and the HPOP have anti drain back valves. So if I service the block valve, I should be fine installing the newer style HPOP only have antidrain valve in the reman block? I know common sense agrees with what I am asking, but I am nervous to make assumptions with this kind of money involved.
A
02/09/2026, 1:52:41 PM
Please call our sales/tech line in the contact us page.
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4.64/5 Stars out of 11 Reviews
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Aaron West (Oklahoma) | July 23rd, 2019
I would skip Diesel Site products. I had a leak on the adrenaline after 18 months. Full force advised Diesel Site usually only supplied O rings as the warranty. If I wanted to rebuild my own HPOP, I would not have bought the adrenaline. Robert at Full Force is rock solid and took care of me, but Jennifer at Diesel Site ( the part supplier)tried to send the core back to me. I told her the HPOP was warrantied complete as it should be. She then rips me up one side and down the other explaining her vague warranty only covers orings and I should have rebuilt it myself. She goes on to explain that all of this is listed out on their site. I looked up their site see image below.
Proposition 65 Warning Information -
P65Warnings.ca.gov
Fits: 7.3 Powerstroke 1994-2003
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Fits: 7.3 Powerstroke 1994-2003
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Fits: 7.3 Powerstroke 1994-1997