Washer Fluid Tank Cap – DT 1.22660 OE-Spec

Streaky, sluggish, or completely dry washer jets almost always trace back to a failing washer fluid tank sealing cap. The DT 1.22660 washer fluid tank sealing cap replaces the worn factory component with an OE-spec part designed as a sealing cap that keeps the washer fluid reservoir closed, clean, and free of contamination, restoring dependable spray performance in one straightforward repair.

DT produces automotive replacement parts to OE-equivalent standards, with washer-system components designed to match the factory fit, form, and function of the part they replace. Our parts specialists cross-reference every washer-system listing against the manufacturer’s part number and EAN before it is added to our catalog, so the fitment details shown here reflect the original component specification rather than an approximation.

Key Benefits

Every detail of the DT 1.22660 is aimed at one outcome: a washer system that works exactly as it should, without surprises.

• Backed by a manufacturer guarantee — This part is backed by the manufacturer’s 2 years guarantee, covering defects in material and workmanship.
• Nationwide availability — stocked for delivery to customers across all 50 US states, from coast to coast.
• Durable, chemical-resistant construction — materials selected to withstand prolonged exposure to washer fluid, road salt, heat, and cold.
• Consistent, reliable washer performance — helps restore steady fluid delivery to the spray nozzles for clear visibility in all weather.
• OE-matching fit and function — engineered to the same dimensional tolerances as the original component, so it seats correctly without modification.
• Manufacturer quality control — produced under the DT quality program, with EAN 4057795075610 for easy verification and traceability.

Specifications

Specifications and compatibility details for the DT 1.22660 are summarized below so you can confirm fitment before ordering.

• Brand / Manufacturer: DT
• Manufacturer Part Number: 1.22660
• EAN: 4057795075610
• Product Type: Washer Fluid Tank Cap
• For OE number: 1371839
• Guarantee: 2 years guarantee

Use Cases & Applications

The DT 1.22660 is intended as a direct replacement for the original washer fluid tank sealing cap on applicable vehicles, restoring the washer system to factory-correct operation. It’s a common fix for vehicles showing symptoms such as reduced or uneven washer spray, fluid leaking under the hood or around the reservoir, a washer fluid warning light that won’t clear even after refilling, or visible cracking and discoloration in the plastic housing. Independent repair shops, dealership service departments, and confident DIY owners all rely on OE-spec parts like this one because they eliminate the fitment guesswork that comes with universal, one-size-fits-most alternatives. Because the part is manufactured to OE dimensions, it’s also a practical choice for pre-emptive replacement during a broader washer-system service — for example, when a technician is already replacing a washer pump or wiper blades and wants to rule out a related failure point at the same time.

Quality Assurance & Certifications

Manufactured under DT’s standard quality-control program, this part carries the manufacturer part number 1.22660 and EAN 4057795075610 for traceability from production through delivery. This part is backed by the manufacturer’s 2 years guarantee, covering defects in material and workmanship. As with any washer-system component, confirm compatibility using your vehicle’s OE part number or a qualified parts lookup, and have a certified technician handle installation if you’re not comfortable doing it yourself.

Shipping & Delivery

This part ships to all 50 US states, with tracking provided on every order so you know exactly when it will arrive. Most orders are processed and dispatched within one business day. Learn more on our shipping policy page.

Why Buyers Choose This Part

Buyers replacing this part consistently point to the same things: a clean bolt-in fit against the factory mounting points, no fluid weeping at the connections after installation, and washer spray that’s back to full strength right away. Independent installers appreciate that OE-spec parts like this one don’t require the trial-and-error fitting that generic replacements often demand.

Related Parts & Resources

Learn more about windshield washer fluid and NHTSA windshield wiping and washing standards. Review our warranty policy, browse the full auto parts shop for related components, or check our FAQ page for general ordering and fitment questions. Have questions about this specific part? Contact our team for help.

Frequently Asked Questions

What makes the DT 1.22660 different from a universal-fit replacement?

Unlike generic universal parts, the DT 1.22660 is manufactured to OE dimensional specifications, so it mounts at the factory connection points without modification, trimming, or adapters.

Will this washer fluid tank sealing cap fit my specific vehicle?

Fitment depends on your vehicle’s make, model, year, and trim. Cross-reference the part number (1.22660) or EAN (4057795075610) against your vehicle’s original component, or check with a parts specialist before ordering to confirm compatibility.

Are there any special fitment notes for this part?

Always confirm the manufacturer part number and EAN against your vehicle’s original component, since washer-system parts can vary by trim level and factory equipment.

What is this part made from?

This washer fluid tank sealing cap uses automotive-grade, chemical-resistant plastic and sealing components designed to withstand long-term washer-fluid exposure.

How long does shipping take?

Standard orders shipping within the continental United States typically arrive within 3-7 business days, with faster options available at checkout. We ship to all 50 states.

What is your return policy?

Unused, uninstalled parts in original packaging can be returned within our standard return window. Full terms are outlined on our warranty and returns policy page.

Does this part come with a warranty or guarantee?

This part is backed by the manufacturer’s 2 years guarantee, covering defects in material and workmanship. See our warranty policy page for complete coverage terms.

How do I confirm this is the correct part before I install it?

Compare the manufacturer part number (1.22660) and EAN (4057795075610) printed on the packaging against your vehicle’s original component or your VIN-based parts lookup. If anything doesn’t match, contact us before installation.

Do I need a professional to install this part?

Many owners with basic mechanical experience can install this part using factory hardware and simple hand tools. If you’re not comfortable working under the hood, we recommend having a certified technician complete the installation.

What should I do if the part arrives damaged?

Contact our support team right away with photos of the damage and your order number so we can arrange a replacement or refund promptly.

Can I get help confirming this part matches my exact vehicle trim?

Yes — contact our support team with your VIN or trim details and we’ll help confirm whether the DT 1.22660 is the correct fit before you order.

You May Also Need

Pair this part with a compatible companion component: DT 3.35110 washer fluid tank sealing cap. Browse our full washer system parts catalog for more OE-spec options.