Description
Product Overview
The GruDawu Vacuum Pump Seal Kit is engineered for 5.9L diesel engines built between 1991 and 2002. It replaces part number 254089742 and matches the original manufacturer part number 4089742. The kit contains a sealing gasket with oil‑absorbing fluff, a precision‑cut oil seal, and two durable O‑rings. All components are fabricated from high‑grade, oil‑resistant materials to ensure a long‑lasting seal and prevent future leakage.
![[Product front view showing all components]](https://www.mysticgo.store/wp-content/uploads/2026/06/20222bcf010e44c7a3855d42794a9547.jpg)
Usage
Designed for automotive technicians and DIY enthusiasts, this kit fits directly into the vacuum pump housing of compatible diesel trucks and SUVs. Ideal for routine maintenance, repair of oil leaks, or restoring performance after wear. Install the gasket first, followed by the oil seal and O‑rings, using standard tools. No special equipment is required, making it suitable for both professional garages and home workshops.
Why Choose Us
GruDawu combines decades of automotive expertise with rigorous quality control. Each seal undergoes dimensional testing to meet OEM specifications, guaranteeing a perfect fit. Our oil‑absorbing fluff layer provides an extra barrier against seepage, extending service intervals. Backed by a responsive customer support team, we offer technical assistance and a hassle‑free return policy.
Key Features
- Exact OEM fit for 5.9L diesel engines 1991‑2002, eliminating guesswork.
- Oil‑absorbing fluff on the gasket maximizes leak protection.
- High‑quality oil seal and O‑rings resist wear and temperature extremes.
- Complete kit eliminates the need to purchase a full vacuum pump.
- Dedicated support team ready to help with installation questions.
FAQ
Will this kit fit a 2003 model?
No, the kit is specifically designed for 1991‑2002 5.9L diesel engines. For later models, please check the compatible part list.
Do I need to replace the entire vacuum pump?
No, the seal kit repairs the leaking area, allowing you to keep the existing pump and save on parts.
What tools are required for installation?
Standard hand tools such as a socket set, screwdrivers, and a torque wrench are sufficient.
Is the kit covered by a warranty?
Yes, GruDawu offers a one‑year limited warranty against manufacturing defects.
Can I install the kit myself?
Absolutely. The kit includes detailed instructions and is designed for straightforward installation by both professionals and DIY users.







Dorman Radiator Drain Cock Screw-In Type With Washer
GruDawu Vacuum Pump Seal Kit for 5.9L Diesel 1991-2002 Replacement
El Yucateco Paste Achiote - 2 Pack, 3.5 oz Each
Electric Hammer Dust Cover, Drill Dust Collector 2Pcs Plastic Hammer Cover Electric Drilling Dustproof Device for Electric Hammer Impact Drill
LT Easiyl Shaft Seal 8x18x5mm Nitrile for Milwaukee 2771-20 Pump
VIPIH Automatic Transaxle Pump Seals Replacement
Test Anvil VTSYIQI Large White Alloy Steel Calibration Tool
Mushroom Foraging Bag YREASEL Adjustable Shoulder Strap Foldable Green
Hammer Holder WL093 by Kraft Tool Multi-Color Classic Sheath
Wrench Hammer Holder JXHONG Leather Belt Organizer Fits 1-7/8" Belts
PartCatalog Radiator Drain Petcock for Automotive
Steel hammer holder McGuire-Nicholas 439 leather holster
Vacuum Pump Seal Kit ZOKYUYS Metal Rubber Design
Tool Holster YUMHRZZSDY Heavy Duty Nylon Composite Grip Black
Leather Hammer Holder Tourbon Belt Axe Holster with Steel Loop Fits 3"
doufuhua Padded Hammer Holster for Diamondback Belt Right Hand Black
Mopar DRAINCOCK Radiator Drain Cock OEM Part
Hammer Loop Milwaukee 48-22-8149 Silver Holster with Flat Head
URO Parts Blue Metal Radiator Drain Plug for BMW
Toyota Oil Pump Seal 15188-75021 Medium Black Modern Keychain
Hydro-Gear Transaxle Pump Seal 2513018 OEM Replacement Part 1x1x1 in
CT Solutions Front Pump Seal for Ford C4 C5 C6 FMX AOD Transmission
Chi Chi's Fiesta Restaurante Seasoning Mix, 0.78 Ounce Pack of 8
Atlas 46 Direct Draw Hammer Sheath Black Nylon 2 Pockets for AIMS V2
EZ Bombs Garlic Rosemary Brine Bomb Seasoning for Turkey Chicken Pork
Hammer Holster Diamondback Nylon Steel Loop
Personalized Leather Firefighter Glove Strap Holder RC Hammer Holster
Handmade Leather Axe Holster AncientSmithy Crazy Horse Belt Loop
Dried Chile Peppers Variety Pack 12oz - Ancho Guajillo Pasilla by
Hammer Sleeve CuraceQ 2-Pack Padded Holster for Tool Belt Adjustable
Antstone Concrete Rebound Hammer Tester Schmidt 10-60MPa Portable
Hammer Holster for Belt - Compact Hammer Loop & Belt Holder, Durable Materials, Lightweight & Secure Fit for Electricians, Builders & DIY Enthusiasts
Bucket Boss Swinging Hammer Holder Tan Leather Pouch Model 55127
Leather Hammer Holder Brown HOGIKUO Belt Organizer with Leather
HAUTMEC Hammer Holder Tool Belt 1680D Swing Hook Pockets HT0412
Concrete Rebound Hammer Tester Proceq Type N 31001002 Aluminum
Jamotec F1 Professional Rotating Hammer Holster – Steel Build
Padded Hammer Holster Left Hand doufuhua Oxford Cloth Black Sleeve
Hammer Hauler BOSCH T1757 Premium Gray Hand Tool Classic Design
Hammer Holster by Sanseenia Leather Belt Loop – Brown Full‑Grain
Overhaul Seal Kit Ciuouient Automotive Pump Model 70525 with Gaskets
4R100 Transmission Seal Kit damyprd Seals for 1999-2008 Ford Duty
Atlas 46 Leather Hammer Hold for Quick Draw with Tubes, Right-Hand Holster, Heavy Duty - Berry Compliant - Made in The USA
Leather Hammer Loop Bon Tool Classic Gold with Brass Rivets
Axe Holster Leather Strap with Stud Closure by TOURBN Brown Belt Mount
Ken-Tool Pilot Sleeve Zip Tool 30630 Plastic Slip Pocket Design
Bucket Boss 54008 Hammer Holder Reinforced Back Multicolor
Hammer Holder Occidental Leather OxyRed Premium Leather Holster Black
Allison Transmission Automatic Transaxle Pump Seal 29546229 Painted
APDTY Radiator Drain Cock Brass Durable Design
Hammer Holder by MELOTOUGH Black Iron Rivet Reinforced ABS Belt Loop
Reviews
There are no reviews yet.