# Sonar Transmitting Cruiser #6783 — resale value

Source: JunkPal price guide — https://junkpal.ai/products/sonar-transmitting-cruiser-6783-lego-space-lego

**Sonar Transmitting Cruiser #6783** is worth about **$74** loose, based on real closed eBay sales. Sealed or new examples sell for around **$999**.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/sonar-transmitting-cruiser-6783-lego-space-lego

## Value by tier

| Condition | Value (USD) |
| --- | --- |
| Loose | $74 |
| Complete (CIB) | $150 |
| Sealed (new) | $999 |

Values are medians of real closed eBay sales, updated 2026-08-07. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

Recent movement: Steady.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DLEGO%2520Space%2520Sonar%2520Transmitting%2520Cruiser%25206783%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DLEGO%2520Space%2520Sonar%2520Transmitting%2520Cruiser%25206783%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

eBay links are affiliate links: JunkPal may earn a commission at no cost to you.

## Details

| Field | Value |
| --- | --- |
| UPC / EAN | 5702010967834 |
| Brand | LEGO |
| Theme | LEGO Space |
| Set number | #6783 |
| Release date | January 1, 1986 |

## Sonar Transmitting Cruiser #6783 (LEGO Space) resale value

A loose Sonar Transmitting Cruiser #6783 set runs around $74, a complete copy (all pieces + box + instructions) about $150, and a factory-sealed box commands $999.

### What drives the price

Retired sets, completeness (every piece + minifigs + instructions + box), and sealed condition drive LEGO value. Exclusive sets and discontinued themes appreciate the most; minifigs alone can carry significant value.

## FAQ

**What is the best value for a collector wanting this set?**

If you are looking for the best value, the loose version is available for $81, while the complete in-box version is $128.

**Is the sealed version worth the high price tag?**

The sealed, new version is listed at $999, indicating high collector demand for mint condition items.

**Where can I find this LEGO Space set?**

You can find the Sonar Transmitting Cruiser #6783 listed in loose, complete, or sealed condition on our marketplace.

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Full price guide: https://junkpal.ai/products/sonar-transmitting-cruiser-6783-lego-space-lego
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-08-07, based on real sold listings (junkpal.ai)"