SKU: 3422389578

Oil Pump (30mm High-Volume) [Vanagon]

Sale price$101.66 Regular price$112.95
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Description

Oil Pump (30mm High-Volume) [Vanagon]Replacing the original 24mm oil pump with our larger 30mm high volume oil pump provides two main benefits: First, it helps solve the notoriously low oil pressure issue that is typical of the waterboxer engine design and the accompanying low oil pressure warning buzzer issue. If you've read our article on the subjectyou know that our high volume pump kit can help quiet that buzzer for good! We include this larger volume oil pump on every rebuilt

Replacing the original 24mm oil pump with our larger 30mm high volume oil pump provides two main benefits:

First, it helps solve the notoriously-low oil pressure issue that is typical of the waterboxer engine design and the accompanying low oil pressure warning buzzer issue. If you've read our article on the subject—you know that our high-volume pump kit can help quiet that buzzer for good! We include this larger-volume oil pump on every rebuilt GoWesty engine. Second, it solves the common oil leak issue between the oil pump cover and oil pump. We achieve this by procuring the absolute best quality pump available, machining the pump housing to accept an O-ring, and capping it off with our custom Super Seal Oil Pump Cover. No more wish-I-could-get-this-silly-paper-gasket-to-stop-leaking gasket!

Fits: All 1983-91 Vanagon Waterboxer

Features:
• 30mm high-volume pump with pre-checked pump gear & shaft*
• GoWesty O-ring modification**
• Custom GoWesty Super Seal Pump Cover
• Bolts, O-rings and sealing crush washers to replace the leak-prone stud/sealing nut combination

Check out our full Oil Pump Article.

*We have found over the years (the hard way) that the press-fit between the driven pump gear and the shaft that drives it can vary to the point where the gear can literally spin on the shaft causing all sorts of hard to diagnose oil pressure issues, and even engine seizure. So, we developed a special tool to test each and every driven gear/shaft fit by applying a torque to the gear. We have flunked as many as 50% on some of the brands we have sold in the past because the gear press fit does not pass our test. This test adds very little to the price we charge for our pumps, but the value to you can be enormous. We are always striving to find the best pump on the market, and if we ever find one with gears that check out good 100% of the time: We can finally stop checking them! Yeah, GoWesty has your back.

**Between the pump body and cover we have added an O-ring to replace the gasket. We do not install additional O-rings between the pump body and engine block bore (the “triple o-ring” idea) because all they do is plumb the pressure side of the pump to the suction side and which actually reduces the pump efficiency.


Pro tip: On our rebuilds, we don’t use any of the gaskets that come in the box with the pump. Between the engine block and pump housing we use sealing compound.

Note: Installation instructions are not included. This kit is intended for professional installation only. Please refer to your Bentley Repair Manual for the proper procedure. Oil Pump Puller tool (VW201) required for removal and installation.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3422389578

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4.0 ★★★★★
Based on 7 reviews
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M
Verified Purchase
Mike Ochoa
Natrona Heights, US
★★★★★ 5
Qaulity part
Great fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2024
L
Verified Purchase
Louis
Waukegan, US
★★★★★ 5
Hose
Great custom fit
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Reviewed in the United States on November 17, 2020
G
Verified Purchase
Graves
Dallas, US
★★★★★ 3
Didn’t fit but I made it fit.
The part appears decently made in China. The end that terminates below the oil filter would not mount (too tight). I gently sanded the o-ring groove, lubricated and I put the part in freezer. After two hours of sanding the groove I got the part seated. Good thing I was patient today. Pain in the butt.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2020
T
Verified Purchase
The Grand Proxy
Alexandria, US
★★★★★ 5
Trusted reliable brand
Size: 5 Liter, Style: 1 Pack, Configuration: 5W-30
I recently used LIQUI MOLY Molygen New Generation 5W-30 for an oil change and overall I’m very impressed with the quality. The oil feels like a premium product and the difference in engine smoothness was noticeable almost immediately after the change. The engine runs quieter and smoother, especially during cold starts. This oil uses advanced additive technology designed to reduce friction and protect internal engine components, which helps improve efficiency and extend engine life. It also helps prevent deposits and keeps the engine cleaner over time. () Another thing I like is that it maintains stable viscosity even under high temperatures and heavy driving conditions. It provides excellent lubrication and wear protection while also helping improve fuel efficiency. The oil is also compatible with modern engines, including turbocharged applications, this is a high-quality synthetic motor oil that provides excellent protection and performance. If you’re looking for a reliable oil that keeps the engine running smoothly and helps reduce wear, this is definitely a great option and worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
B
Verified Purchase
Bill Davis
Fort Morgan, US
★★★★★ 5
The best thing you can use in a Tahoe! Period!
Size: 5 Liter, Style: 1 Pack, Configuration: 5W-30
This is like liquid gold for your vehicle,it's molecular make up,is far superior to any oil out there,as it gets hot,it's molecules bind to every component inside your engine and attaches itself to the metal and fills in the stress points,all points really,it basically soaks into the metals,and is by far the most long lasting and does not break down like other oils,I get 10k off one oil change and I have 273,000 miles on my 03 Tahoe and this stuff is incredible I don't have any ticks,clicks,knocks, Nothing,not on fire up,cold start,my truck runs about five degrees cooler,I get a couple more miles to the gallon and my motor purrs like new,I could probably go 12-15k between oil changes,but I change it with the filter at 10K a new AC Delco pf46e and a 5-1/4 qt jug of liquid moly 5-30 full synthetic a new crush washer and I'm good for 10,000 miles Easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026

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