SPELAB’s 4th of July Sale 2026 is live from June 26 to July 6, PST, giving truck owners a limited-time chance to save on diesel truck parts, summer upgrades, replacement components, and selected clearance items before the hottest part of the driving season.
Quick Answer
SPELAB’s 4th of July Sale runs from June 26 to July 6, PST. Use code JULY10 for 10% off sitewide, or shop selected clearance auto parts for 15–50% off while supplies last.
Shop the SPELAB 4th of July Sale or browse the SPELAB clearance sale for selected 15–50% off deals.
Key Takeaways
- SPELAB’s 4th of July Sale runs from June 26 to July 6, PST.
- Use code JULY10 to save 10% sitewide.
- Selected clearance products are discounted 15–50% off while supplies last.
- Order early if you need parts before a road trip, towing weekend, or planned garage install.
- Ford Powerstroke, Ram Cummins, and GM Duramax owners should confirm fitment before checkout.
SPELAB 4th of July Sale Details
The sale gives shoppers two ways to save: a broad sitewide discount for fitment-specific parts and deeper markdowns on selected clearance items.
| Offer | Discount | Best For | Where to Shop |
|---|---|---|---|
| Sitewide Sale | 10% off with code JULY10 | Truck owners shopping by year, make, model, and engine | Main Sale Page |
| Clearance Deals | Selected items 15–50% off | Budget builds, garage projects, and high-value purchases | Clearance Page |
Is This 4th of July Sale Worth It for Your Truck?
This sale makes the most sense if your truck already has a known weak point, a planned upgrade, or a summer job coming up. Heat, towing weight, long highway miles, off-road trails, and stop-and-go traffic can expose aging factory parts faster than normal daily driving.
If you drive a Ford Powerstroke, Ram Cummins, or GM Duramax truck, the 4th of July Sale is a practical time to look at upgrades that support airflow, cooling, crankcase ventilation, exhaust flow, and driveline reliability. It is also useful for DIY owners who want to install parts over a holiday weekend instead of waiting until something fails on the road.
Best Diesel Truck Parts to Consider During the Sale
The best upgrade depends on what your truck actually does. A tow rig needs different support than a weekend trail truck, and a high-mileage work truck may need reliability parts before performance parts.
Cooling and Heat Management Parts
Summer heat makes cooling problems show up fast. If your plastic tank is aging, stained, or starting to seep, a 6.7 Powerstroke aluminum coolant tank can be a smarter buy than waiting for a roadside leak. For broader fitment options, compare SPELAB’s Powerstroke coolant expansion tank collection.
Airflow and Intake Upgrades
Under load, airflow restrictions and weak intake hardware become more noticeable. A 6.7 Cummins intake horn is worth considering for Ram owners who want a stronger top-end airflow upgrade for towing, hauling, or long highway pulls.
Crankcase Ventilation and Oil Control
Oil vapor in the intake tract is a common concern on modern diesel trucks. A CCV PCV reroute kit or a dedicated oil catch can setup can help owners manage crankcase vapor before it turns into heavier intake residue.
Boost, Driveline, and Exhaust Support
For towing trucks, boost leaks and driveline heat are not small annoyances. An intercooler pipe kit can help address aging charge-air connections, while a differential cover is a smart upgrade for trucks that tow, haul, or see long highway miles.
John Lee’s Summer Towing Note
Empty highway cruising is easy on a diesel truck. The real test comes when you are towing in 90°F+ summer heat, climbing grades, sitting in traffic, or pulling a camper with the A/C running. That is when aging plastic tanks, loose boots, heat-soaked driveline parts, and old factory hardware start showing their weak spots.
If your truck already has a known leak, restriction, boost issue, or heat-related concern, the holiday weekend is a practical time to fix it before the next long haul. For more technical background, read SPELAB’s guides on why oil temperature matters, how to stop boost leaks, and why factory tanks fail.
What to Know Before Ordering During the 4th of July Sale
Clearance items are selected products and may have limited inventory. If you see a part that fits your truck and build plan, ordering early is the safest choice. Popular sale items can move faster during a holiday promotion, especially when the discount is deeper than the sitewide offer.
Holiday sales can also increase order volume, so do not wait until the last day if you need parts before a road trip, towing weekend, or scheduled install. SPELAB ships from its U.S. warehouse network in Florida, Kentucky, California, and New Jersey, but processing and delivery timing may still depend on order volume, carrier schedules, product availability, and destination.
Before checkout, confirm your truck’s year, make, model, engine, drivetrain, and product notes. For tuning, exhaust, or emissions-related parts, check all use restrictions and local regulations before purchasing. Some products may be intended for off-road or race use only.
Should You Choose Sitewide 10% Off or Clearance 15–50% Off?
Use the sitewide discount when you already know the exact part your truck needs. Use the clearance page when your goal is to find the deepest markdown on selected items.
| Shopping Goal | Better Choice | Why |
|---|---|---|
| You need a fitment-specific part | Sitewide 10% off | Better for shopping by year, make, model, and engine |
| You want the biggest markdown | Clearance 15–50% off | Selected clearance items offer deeper discounts |
| You are comparing several upgrades | Check both pages | The best deal depends on the exact part and availability |
How to Shop Without Buying the Wrong Part
Before ordering, confirm your truck’s year, make, model, engine, and trim. Diesel platforms often change across model years, and small fitment details can separate the right upgrade from a frustrating return.
Read product notes carefully, especially for tuning, exhaust, emissions-related, and off-road-use components. If you are not sure whether a part fits your truck, contact SPELAB customer support before ordering.
Shop the SPELAB 4th of July Sale
Ready to build your truck for summer towing, road trips, off-road use, or hard work? Shop SPELAB’s 4th of July Sale from June 26 to July 6, PST. Use code JULY10 for 10% off sitewide, or browse selected clearance products for 15–50% off while supplies last.
FAQ
Q: When does the SPELAB 4th of July Sale start and end?
A: The sale runs from June 26 to July 6, PST.
Q: What is the SPELAB 4th of July discount code?
A: Use code JULY10 to save 10% sitewide during the event.
Q: Will clearance items stay in stock throughout the sale?
A: Clearance items are selected products and may have limited inventory. If you see a part that fits your truck and build plan, ordering early is the safest choice.
Q: Will shipping be delayed during the 4th of July Sale?
A: Holiday sales can increase order volume, so it is smart to order early if you need parts before a road trip, towing weekend, or scheduled install.
Q: Can I use code JULY10 on clearance items?
A: Use code JULY10 for the sitewide 10% off offer. Clearance products are already marked down 15–50%, and discount eligibility may depend on the product and checkout rules.
Q: What diesel truck parts are worth buying during the sale?
A: Cooling parts, intake upgrades, CCV reroute kits, catch can systems, differential covers, intercooler pipes, and selected exhaust components are strong choices for summer towing, hauling, and road trips.
Q: What should I check before ordering diesel truck parts?
A: Confirm your truck’s year, make, model, engine, drivetrain, and product notes before ordering. This is especially important for Powerstroke, Cummins, Duramax, tuning, exhaust, and emissions-related parts.
Q: Are emissions-related parts street legal?
A: Some products may be intended for off-road or race use only. Always check product notes and local regulations before purchasing or installing emissions-related parts.
