This lid spring and the WP3368999 actuator/drawbar spring are separate components. Both may appear in one dispenser diagram; they are not aliases or automatic substitutes.
Will it fit your appliance?
Check your complete model number, including the suffix.
Identify the part and package
The full package contents have not been recorded. Check the written retailer listing for included pieces and hardware.
Check the catalog sources →Know what you're ordering.
- This lid spring and the WP3368999 actuator/drawbar spring are separate components. Both may appear in one dispenser diagram; they are not aliases or automatic substitutes.
- This is not a main-door balance spring. The listing identifies a small dispenser component, not a complete dispenser assembly.
- Part reference
- WP8066018
- Part type
- Dishwasher Detergent Lid Spring
- Brands in fit records
- Whirlpool; check the full model
- Older references
- 8066018
Documented model matches
“Confirmed” means listed by multiple source publishers, not physically tested by us. Match every character of your model.
| Full model | Brand | Evidence |
|---|---|---|
| DU400SWKW0 | Whirlpool | Confirmed · 2+ sources |
| DU840SWPT0 | Whirlpool | Confirmed · 2+ sources |
| 7DP840SWKX0 | Whirlpool | Confirmed · 2+ sources |
| 7DP840SWKX1 | Whirlpool | Confirmed · 2+ sources |
| 7DU920PWKB0 | Whirlpool | Confirmed · 2+ sources |
| 7DU920PWKQ0 | Whirlpool | Confirmed · 2+ sources |
| 7DU920PWKS0 | Whirlpool | Confirmed · 2+ sources |
| DP840SWKX0 | Whirlpool | Confirmed · 2+ sources |
| DP840SWPX0 | Whirlpool | Confirmed · 2+ sources |
| DP8500XXN0 | Whirlpool | Confirmed · 2+ sources |
| DP920PFGQ3 | Whirlpool | Confirmed · 2+ sources |
| DP940PWKM0 | Whirlpool | Confirmed · 2+ sources |
| DP940PWKM1 | Whirlpool | Confirmed · 2+ sources |
| DP940PWKQ1 | Whirlpool | Confirmed · 2+ sources |
| DP940PWPQ0 | Whirlpool | Confirmed · 2+ sources |
| DP940PWPQ1 | Whirlpool | Confirmed · 2+ sources |
| DU600PWKQ0 | Whirlpool | Confirmed · 2+ sources |
| DU620PWKQ0 | Whirlpool | Confirmed · 2+ sources |
| DU8000XX7 | Whirlpool | Confirmed · 2+ sources |
| DU800SWKQ0 | Whirlpool | Confirmed · 2+ sources |
| DU810SWKQ0 | Whirlpool | Confirmed · 2+ sources |
| DU810SWKT0 | Whirlpool | Confirmed · 2+ sources |
| DU810SWLQ0 | Whirlpool | Confirmed · 2+ sources |
| DU810SWLT0 | Whirlpool | Confirmed · 2+ sources |
| DU810SWLU0 | Whirlpool | Confirmed · 2+ sources |
| GDP8500XXN1 | Whirlpool | Single source |
Before you replace it
- Check for dishes obstructing the detergent cup and follow the model manual for cleaning accessible residue. A broken latch, damaged spring and failed actuator are different causes. Disconnect power before internal access and confirm the exact diagram item; use qualified service for uncertain door-panel work.
Compare the actual package.
Compare the exact reference, quantity and model evidence before comparing cost. Retailer prices are dated observations; shipping and tax are extra unless the seller says otherwise.
| Listing | Reference & quantity | Price check | Warranty & returns |
|---|---|---|---|
| Parts DrCatalog reference | WP8066018Confirm package contents on the listing. | Check current priceCheck listing ↗ | Confirm seller warranty, installed-part exclusions and return shipping before purchase. |
Choose a listing only after resolving model fit and package differences. A lower price, familiar brand or similar photograph is not additional compatibility evidence. We have not physically tested these offers or ranked their quality.
Retailer links · affiliate tracking disabled. FitCertain does not sell these parts.Plan the replacement.
This is an overview for planning the work. Use your complete model’s service instructions for access, fasteners and final checks. The linked catalogs identify the part and may provide repair material for specific models; they are not instructions for every appliance.
We have not reviewed a replacement procedure for this record. Ask the retailer for instructions covering your complete model before disassembly.
Availability & number history
Last status check: 2026-10-21. Catalog identity reviewed on the stated date. Live stock and delivery were not independently verified; check the retailer before ordering.
Availability can change. Check the current retailer listing; a missing listing alone does not prove that a part is discontinued.
A few useful answers.
Does a similar model prefix confirm this part?
No. The fit check uses the complete model and revision listed in the evidence. An unlisted model is unknown, not a confirmed mismatch.
Has FitCertain tested this replacement on my appliance?
No. These are catalog relationships. Open the source links and read the confidence for your exact model; confirm compatibility, contents and return terms with the retailer before installation.
Can WP3368999 replace this lid spring?
No replacement relationship is established. WP8066018 is the lid spring and WP3368999 is the actuator/drawbar spring; they can be separate items in one dispenser diagram.
Is a dispenser problem enough to order this spring?
No. Check for an obstructed lid and identify the latch, spring and actuator separately. The main dishwasher door balance system uses different parts; use the exact model diagram after diagnosis.
Other parts to identify separately
Related references are not interchangeable. Check each part against your model.
- WP3368999 — Different reference to identify separately. Not an interchangeable substitute; check its own complete-model evidence.
- WD3X764 — Different reference to identify separately. Not an interchangeable substitute; check its own complete-model evidence.
Keep checking
Check our sources
Source records include retailer catalogs and seller listings. The confidence label identifies how much corroboration we have.
- iFixit Accessed 2026-10-21
Literal visible compatibility list. No suffix or punctuation normalization. Excluded type labels and show-more controls.
- Parts Dr Accessed 2026-10-21
Compatibility table retrieved through indexed public catalog; live availability was not verified.
- PartsNet Accessed 2026-10-21
Visible compatible-model paragraph. Retained exact dishwasher models shared with iFixit; excluded unrelated entries and ambiguous O/0 endings. Live stock not checked.