Modesto has diesel shops, and plenty of them are good. Search diesel repair in Modesto and you will find people who can chase a no-start, hang a turbo, or pull an injection pump the same day. What Stanislaus County does not have is a calibration bench: the test stand where a pump or a set of injectors gets measured, rebuilt, and set back to factory spec. When the diagnosis lands on the pump itself, the part leaves the county.
Valley Fuel Injection & Turbo is where a lot of that work should land. We are the Bosch-certified rebuild shop in Woodland, about 95 miles up CA-99 and I-5, and we have been doing this work since 1993. We hold factory authorizations from Kubota, Yanmar, Delphi, and Alliant Power, and back every rebuild for 12 months, unlimited mileage, plus 30 days on electrical and electronic components.
Pump Work on a Harvest Clock
Stanislaus County diesel does not fail on a convenient schedule. The almond and walnut shake runs late summer into fall, and a shaker, sweeper, or harvester that quits in September is a different emergency than the same machine dying in January. Dairies out toward Turlock and Denair never stop at all: feed mixers, loaders, and manure equipment run every single day. Under it all sits the quiet stuff, irrigation wells and stationary engines that are expected to fire after months of sitting.
Most of that equipment still runs mechanical rotary and inline pumps: Stanadyne and Delphi units on older tractors and irrigation engines, Bosch VE pumps on compact utility tractors, inline pumps on the bigger iron. This is exactly the hardware our benches were built around, and being a Kubota and Yanmar authorized dealer means the small-tractor side comes with factory parts, not guesswork. If it is farm equipment, start at the tractor injection pump rebuild page.
Because timing matters more here than almost anywhere, we will lay out the options in the order that saves harvest days:
- Test before you spend. Every unit is measured on the stand before anyone reaches for a wrench. A pump that still meets spec costs you a test instead of a rebuild, and we tell you where to look next.
- Rebuild yours. Full teardown, wear parts, reassembly, and calibration. You get your own pump back with documented numbers.
- Swap and go. For common electronic units, the exchange program puts a rebuilt, calibrated pump in your hands first and takes your core after. When the orchard cannot wait, this is the fast lane.
What Stanislaus County Pumps Typically Cost to Rebuild
Ranges below are typical for 2026 and depend on what the teardown finds, parts availability, and the pump’s condition. Every job gets a firm quote after inspection, before any work starts.
| Pump | Where you will find it | Typical rebuild |
|---|---|---|
| Stanadyne DB2 (ag) | Older tractors, irrigation and industrial engines | $800 to $1,200 |
| Bosch VE rotary | Utility tractors, first-gen Cummins pickups | $900 to $1,500 |
| Delphi/Lucas CAV DPA | Perkins and Massey Ferguson equipment | $800 to $1,400 |
| Bosch P7100 | 1994 to 1998 12-valve 5.9 Cummins | $2,000 to $3,200 |
| Bosch VP44 | 1998.5 to 2002 24-valve 5.9 Cummins | $1,800 to $2,800 |
Pickups and ag trucks are as welcome as tractors. Cummins work of every generation lives on our Cummins diesel injection repair page, common rail injectors get flow-tested at operating pressure, and turbocharger service covers the air side of the same trucks. The full menu is in the rebuild services catalog.
Drive It Up or Ship It, Same Bench
Neither route is second class. About half the value of being 95 miles away is that both genuinely work.
Driving up from Modesto
Shop address: 1243 E Beamer St, Suite C, Woodland, CA 95776
From Modesto: CA-99 North through Stockton, pick up I-5 North at Sacramento, exit at Woodland. About 95 miles, an hour and 35 to an hour and 50 in normal traffic.
From Turlock: same run, about 108 miles.
From Manteca: about 79 miles, CA-99 or I-5 as you prefer.
From Tracy: I-205 to I-5 North, about 80 miles.
From Merced: about 130 miles. Honestly, ship it unless you are already headed to Sacramento.
Beat the traffic: the only slow stretch is Sacramento. Leave Modesto by 5:30 AM and you meet our 7:00 AM open with the whole day left for the drive home.
Shipping from Stanislaus County
A pump in a box rides CA-99 without you. One call to 530-668-0818 with the tag numbers, and the mail-in rebuild service page handles the rest: packing and the address. Your own mechanic can pull the unit and send it, and if that mechanic is a shop doing this more than once, they should set up a trade account: Modesto shops keep the R&R labor, we do the bench work, everyone’s customer stays local.
Modesto Diesel Questions
Can I get a pump back before harvest is over?
Sometimes, and we will not pretend the answer is always yes. Turnaround rides on how the bench is loaded and how fast parts land for your unit, so call with the tag and get the real number for this week. When your own pump cannot come back fast enough, the exchange program exists for exactly this situation.
Do you handle irrigation and stationary engines?
Yes, and Stanislaus County keeps us in practice. Well engines, gensets, and pump stations mostly run the same Stanadyne, Delphi, and inline hardware as the tractors, and an engine that must start after eight idle months is a strong argument for a properly calibrated pump rather than a parts-swap guess.
My Modesto shop already pulled the pump. Can they just send it to you?
That is the normal way. Shops across the Central Valley sublet bench work to us, install it when it comes back, and keep the relationship with their customer. Have them contact us about wholesale terms.
Is this only for farm equipment?
No. The county’s pickups keep the bench as busy as its orchards: 12-valve and 24-valve Cummins pumps, common rail injectors for Duramax and Power Stroke trucks, lift pump questions, and turbo work. If it burns diesel and meters fuel, it is our lane.
Get the Bench on the Phone
Call: 530-668-0818
Address: 1243 E Beamer St, Suite C, Woodland, CA 95776
Hours: Monday to Thursday, 7:00 AM to 4:30 PM. Friday, 7:00 AM to 4:00 PM. Pacific time.
Driving up? Bring the machine, the pump, or just the tag numbers. Staying put? Ship the pump or ask about an exchange unit.
Either way, read us the tag. Make, model, engine, stamped numbers: that is what turns the first call into a quote.
Valley Fuel Injection & Turbo, Inc. has rebuilt and calibrated diesel injection pumps on its own benches in Woodland since 1993, and is an authorized dealer for Kubota, Yanmar, Delphi, and Alliant Power. Stanislaus County is a straight run up CA-99, and the bench works the same whether the pump arrives in your truck or in a box.
